Plug Gauge Handles
Add a handle to hold your plug gauge. No need for bushings—one handle fits a range of plug gauge sizes.
For Plug Gauge Size | ||||||||
|---|---|---|---|---|---|---|---|---|
| Inch | Metric | O'all Lg. | Material | Color | End Color | Each | ||
| A | 0.0300" to 0.5000" | 0.7620 mm to 12.7000 mm | 4 3/8" | Aluminum | Green | __ | 00000000 | 000000 |
| A | 0.0300" to 0.5000" | 0.7620 mm to 12.7000 mm | 4 3/8" | Aluminum | Purple | __ | 00000000 | 00000 |
| A | 0.0300" to 0.5000" | 0.7620 mm to 12.7000 mm | 4 3/8" | Aluminum | Red | __ | 00000000 | 00000 |
| A | 0.0300" to 0.5000" | 0.7620 mm to 12.7000 mm | 4 3/8" | Aluminum | Yellow | __ | 00000000 | 00000 |
| A | 0.0300" to 0.5000" | 0.7620 mm to 12.7000 mm | 4 3/8" | Aluminum | __ | __ | 0000000 | 00000 |
| B | 0.0110" to 0.0605" | 0.2800 mm to 1.5100 mm | 4" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.0610" to 0.2505" | 1.5200 mm to 7.7100 mm | 5 3/8" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.2510" to 0.5005" | 7.7200 mm to 12.7100 mm | 6 1/8" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.5010" to 0.6255" | 12.7200 mm to 15.3100 mm | 5 1/2" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.6260" to 0.7505" | 15.3200 mm to 17.8100 mm | 5 3/4" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.7510" to 0.8325" | 17.8200 mm to 20.3700 mm | 5 7/8" | Aluminum | __ | Green, Red | 0000000 | 00000 |
| B | 0.8330" to 1.0150" | 20.3800 mm to 25.4100 mm | 6" | Aluminum | __ | Green, Red | 0000000 | 00000 |
Plug Gauges with Handle
Take go and no-go measurements with the same tool. These gauges have a go gauge on one end, a no-go gauge on the other end, and a handle with bushings. They are used for precision go/no-go measuring of hole sizes and depths, checking hole location and distance, and setting micrometers. All come with a certificate of accuracy traceable to NIST.
Check the minimum hole diameter with the go gauge end, and check the maximum hole diameter with the no-go gauge end. If the go gauge enters the hole and the no-go gauge is unable to enter, the hole is within tolerance.
For technical drawings and 3-D models, click on a part number.
| Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
| 0.0050" to 0.0755" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 1/4" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 000000 |
| 0.0760" to 0.1805" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 15/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
| 0.1810" to 0.2815" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 1/8" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
| 0.2820" to 0.4065" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 19/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
| 0.4070" to 0.5105" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
| 0.5110" to 0.6355" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 0.6360" to 0.7605" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 0.7610" to 1.0150" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
| 0.0040" to 0.0250" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 000000 |
| 0.0251" to 0.0750" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.0751" to 0.1800" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 15/32" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.1801" to 0.2810" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 6 1/8" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.2811" to 0.4060" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 6 19/32" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.4061" to 0.5100" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 3/16" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.5101" to 0.6350" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 17/32" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.6351" to 0.7600" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 21/32" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.7601" to 1.0000" | 0.0001" | 0" to 0.00006" | -0.00006" to 0" | 8 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
| 0.2200 mm to 1.9100 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 5 1/4" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 000000 |
| 1.9200 mm to 4.5700 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 5 15/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
| 4.5800 mm to 7.1400 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 6 1/8" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 7.1500 mm to 10.3100 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 6 19/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 10.3200 mm to 12.9500 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 12.9600 mm to 16.1300 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 16.1400 mm to 19.3000 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| 19.3100 mm to 25.6500 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 21/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
| Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
| 0.1010 mm to 0.3810 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 0000000 |
| 0.3820 mm to 0.7620 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 0.7630 mm to 1.9050 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 1.9060 mm to 4.5720 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 5 1/2" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 4.5730 mm to 7.1370 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 6 1/8" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 7.1380 mm to 10.3120 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 6 3/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 10.3130 mm to 12.9540 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 7 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 12.9550 mm to 16.1290 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 7 1/2" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 16.1300 mm to 19.3040 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 7 3/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 00000 |
| 19.3050 mm to 25.6540 mm | 0.001 mm | 0 mm to 0.001 mm | -0.001 mm to 0 mm | 8 1/4" | 4 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0000000 | 000000 |
Ball-End Plug Gauges with Handle
Check the true diameter of holes, even if they’re bent or curved. The thin stem on these gauges flexes to reach features deep inside holes and cavities. Unlike standard plug gauges, these gauges have a ball end that centers itself in holes for accurate tolerance tests. They’re often used to inspect bearings and parts made with CNC or milling machines. If the ball passes through the hole, you know the diameter is at least as big as the ball. The handle makes it easier to reach holes that are deep or hard to get to compared to using gauge balls without a handle.
For technical drawings and 3-D models, click on a part number.
Plug Gauge | Stem | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Size Tolerance | Handle Lg. | Dia. | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
| 0.0110" | -0.0001" to 0.0001" | 1 29/32" | 0.009" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 0000000 |
| 0.0120" | -0.0001" to 0.0001" | 1 29/32" | 0.009" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0130" | -0.0001" to 0.0001" | 1 29/32" | 0.009" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0140" | -0.0001" to 0.0001" | 1 29/32" | 0.009" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0150" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0160" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0170" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0180" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0190" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0200" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0210" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0220" | -0.0001" to 0.0001" | 1 29/32" | 0.013" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0250" | -0.0001" to 0.0001" | 1 29/32" | 0.018" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0270" | -0.0001" to 0.0001" | 1 29/32" | 0.018" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0280" | -0.0001" to 0.0001" | 1 29/32" | 0.018" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0290" | -0.0001" to 0.0001" | 1 29/32" | 0.018" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0300" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0310" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0320" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0350" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0380" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0390" | -0.0001" to 0.0001" | 1 29/32" | 0.022" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0400" | -0.0001" to 0.0001" | 1 29/32" | 0.025" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
| 0.0500" | -0.0001" to 0.0001" | 1 29/32" | 0.032" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0600" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0610" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0620" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0625" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0630" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0640" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0650" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0700" | -0.0001" to 0.0001" | 1 29/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0780" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0800" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0900" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0930" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0940" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0950" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0960" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.0980" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1000" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1180" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1200" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1240" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1250" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1260" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1570" | -0.0001" to 0.0001" | 2 15/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1870" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1880" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.1900" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.2490" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.2500" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.2510" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.2520" | -0.0001" to 0.0001" | 3 1/8" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.3750" | -0.0001" to 0.0001" | 3 19/32" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
| 0.5000" | -0.0001" to 0.0001" | 4 3/16" | 0.042" | 3" | 2 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
Threaded Plug Gauges with Handle for Pipe Threads
Verify whether pipe fitting threads fall within tolerance. These gauges are attached to a handle, giving you a solid gripping point to thread and unthread them quickly. All are precisely manufactured to tight thread tolerances. If the gauges wear down, you can install new ones (not included) on the taperlock handle.
Gauges with NPT, NPTF, and BSPT threads have a notch to indicate whether the threads you’re checking are within tolerance. If it takes no more than one turn for the notch to sit flush against the end of your fitting, the threads are within tolerance.
Use gauges with NPSM and BSPP threads for go/no-go tests. The end with a go gauge checks the minimum internal thread size, and the end with a no-go gauge checks the maximum. Your fitting is within tolerance if it’s easy to thread in the go gauge but difficult to thread the no-go gauge more than two turns.
Gauges with a calibration certificate traceable to NIST were calibrated in a lab. The certificate, sometimes called a test report or long-form certificate, details the tested measurements.
For technical drawings and 3-D models, click on a part number.
Gauges | Gauges with Calibration Certificate Traceable to NIST | |||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pitch Dia. Tolerance | Hardness | Material | Features | Each | Each | ||
NPT | ||||||||
| 1/16 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 0000000 | 00000000 | 0000000 |
| 1/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 1/4 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 3/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 1/2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 3/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 1 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 1 1/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 1 1/2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 2 1/2 | -0.0005" to 0.0005" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 3 | -0.0005" to 0.0005" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
| 4 | -0.0005" to 0.0005" | Rockwell C60 | Tool Steel | Taperlock Handle | 00000000 | 000000 | 00000000 | 000000 |
NPTF | ||||||||
| 1/16 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/4 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 3/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/2 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 3/4 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
NPSM | ||||||||
| 1/8 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 000000 | 00 |
| 1/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 000000 | 00 |
| 3/8 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 000000 | 00 |
| 1/2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 000000 | 00 |
| 3/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 000000 | 00 |
BSPT | ||||||||
| 1/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/4 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 3/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
BSPP | ||||||||
| 1/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/4 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 3/8 | -0.0002" to 0.0002" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1/2 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 3/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
| 1 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 000000 | 000000 | 00000000 | 000000 |
| 1 1/4 | -0.0003" to 0.0003" | Rockwell C60 | Tool Steel | Taperlock Handle | 0000000 | 000000 | 00000000 | 000000 |
Acme Threaded Plug Gauges with Handle
Determine if lead nuts, screw collars, and other parts with internal Acme threads are within tolerance. These gauges are attached to a handle to help you quickly thread or unthread them. All are precisely manufactured to tight tolerances. Instead of replacing the whole tool when a gauge wears down, you can insert a new gauge (not included) into the handle.
A part is within tolerance if it’s easy to thread the go gauge into the part but difficult to thread the no-go gauge more than two turns.
Go gauges check the minimum internal thread size. No-go gauges check the maximum internal thread size.
Thread fit designates the tightness or looseness of mating threads. 2G is standard for Acme threads.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Hardness | Material | Features | For Thread Fit | Pitch Dia. Tolerance | Each | |
Go Gauges | |||||||
|---|---|---|---|---|---|---|---|
Class X | |||||||
| 1/4"-16 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0003" | 000000000 | 0000000 |
| 3/8"-12 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0003" | 000000000 | 000000 |
| 1/2"-10 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 5/8"-8 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 3/4"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 3/4"-6 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 1"-4 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 1"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 1"-10 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
| 1 1/4"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | 0" to 0.0004" | 000000000 | 000000 |
No-Go Gauges | |||||||
Class X | |||||||
| 1/4"-16 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0003" to 0" | 000000000 | 000000 |
| 3/8"-12 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0003" to 0" | 000000000 | 000000 |
| 1/2"-10 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 5/8"-8 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 3/4"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 3/4"-6 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 1"-4 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 1"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 1"-10 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
| 1 1/4"-5 | Rockwell C60 | Tool Steel | Taperlock Handle | Class 2G | -0.0004" to 0" | 000000000 | 000000 |
Threaded Plug Gauge Handles
Speed up checking thread tolerances by threading a go gauge on one end of these handles and a no-go gauge on the other. These handles give you a good grip to thread and unthread the gauges into the hole you’re measuring. Use them with taperlock threaded plug gauges.
For technical drawings and 3-D models, click on a part number.
| For Plug Gauge Thread Dia. | O'all Lg. | Material | Color | Each | |
| No. 0, No. 1, No. 2, No. 3 | 1 1/2" | Aluminum | Light Blue | 0000000 | 000000 |
| No. 4, No. 5, No. 6 | 1 3/4" | Aluminum | Light Blue | 0000000 | 00000 |
| No. 8, No. 10, No. 12 | 2" | Aluminum | Light Blue | 0000000 | 00000 |
| 1/4", 5/16" | 2 3/4" | Aluminum | Light Blue | 0000000 | 00000 |
| 3/8", 7/16", 1/2" | 3" | Aluminum | Light Blue | 0000000 | 00000 |
| 9/16", 5/8", 11/16", 3/4", 13/16" | 3 1/4" | Aluminum | Light Blue | 0000000 | 00000 |
| 7/8", 15/16", 1", 1 1/16", 1 1/8" | 3 5/8" | Aluminum | Light Blue | 0000000 | 00000 |
| 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2" | 4" | Aluminum | Light Blue | 0000000 | 00000 |
| For Plug Gauge Thread Dia. | O'all Lg. | Material | Color | Each | |
| M1.6, M1.8, M2, M2.2, M2.5 | 1 1/2" | Aluminum | Yellow | 0000000 | 000000 |
| M3, M3.5 | 1 3/4" | Aluminum | Yellow | 0000000 | 00000 |
| M4, M4.5, M5, M5.5 | 2" | Aluminum | Yellow | 0000000 | 00000 |
| M6, M7, M8, M9 | 2 3/4" | Aluminum | Yellow | 0000000 | 00000 |
| M10, M11, M12 | 3" | Aluminum | Yellow | 0000000 | 00000 |
| M14, M15, M16, M17, M18, M20 | 3 1/4" | Aluminum | Yellow | 0000000 | 00000 |
| M22, M24, M25, M26, M27, M28 | 3 5/8" | Aluminum | Yellow | 0000000 | 00000 |
Battery-Powered Pistol-Grip Drivers for Threaded Plug Gauges
Test thread tolerance in seconds. A time-saver for high-volume work, these drivers quickly thread gauges in and out of holes for you—just pull the trigger. A green ring lights up to let you know your internal threads are within tolerance. If they're not, the gauge won't thread in fully. To avoid jamming, these drivers reverse gauges out of holes as powerfully as they thread them in. The pistol grip minimizes hand fatigue during long periods of use.
These drivers have two speeds to suit the job you need. The high speed works for most applications, while the lower speed is ideal for your largest thread sizes, or when you need more torque. Fine-tune torque even further with the included torque adjustment tool. These drivers come with two batteries, so you’ll never be attached to a cord or without power. Use one battery while charging the other.
Get started by placing your threaded plug gauge in a thread adapter (sold separately), then insert the adapter into the driver’s chuck. The adapter quickly attaches and detaches from the chuck to easily swap out different sizes of threaded plug gauges.
| For Plug Gauge Thread Diameter | Max. No-Load Speed, rpm | Max. Torque, ft.-lbs. | Number of Speeds | Voltage | Batteries Included | Battery Charger Included | Overall Lg. | Weight, lbs. | Features | Includes | Each | |
| No. 0, No. 1, No. 2, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/4", 5/16", 3/8", 7/16", 1/2", M3, M3.5, M4, M5, M6, M7, M8, M9, M10, M11, M12 | 1,550 | 1.47 | 2 | 14.4V DC | Yes | Yes | 8" | 2.5 | Go-Indicating Light | Thread Adapter for No. 0, No. 1, and No. 2 Plug Gauge Thread Diameter; Torque Adjustment Tool; Two Rechargeable Lithium Ion Batteries | 0000000 | 000000000 |
| Battery Type | Battery Voltage | Battery Charging Time, min. | Each | |
Lithium Ion (Li-Ion) | ||||
|---|---|---|---|---|
| Rechargeable | 14.4V DC | 70 | 0000000 | 0000000 |
| For Battery Voltage | For No. of Batteries | Input Voltage | Charging Time, min. | Plug Type | Cord Lg., ft. | Each | |
For Lithium Ion (Li-Ion) Battery | |||||||
|---|---|---|---|---|---|---|---|
| 14.4V DC | 1 | 100V AC, 240V AC | 70 | Two Prong | 6 1/2 | 0000000 | 0000000 |
Go/No-Go Hex Plug Gauges with Handle
Confirm hex drives on socket head screws are within tolerance. A go and no-go gauge in one, these gauges are handy for testing hole size and depth in machining and manufacturing. Their handle gives you a good grip to insert each end into the hole you’re measuring. If the go gauge enters the hole and the no-go gauge is unable to enter, the hole is within tolerance. Gauges are made of tool steel, the most common material for plug gauges, because it’s strong, hard, and resistant to wear.
All come with a certificate of compliance traceable to NIST to certify their sizes are within tolerance. They also meet ASME B18.3, the same dimensional standards for hex drive fasteners.
For technical drawings and 3-D models, click on a part number.
Plug Gauge Size Tolerance | ||||||||
|---|---|---|---|---|---|---|---|---|
| Plug Gauge Size | Go | No-Go | Hardness | Material | End Color | Specifications Met | Each | |
| 0.028" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 0000000 |
| 0.035" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.05" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.0625" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.0781" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.0938" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.1094" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.125" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.1406" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.1563" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.1875" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.2188" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.25" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.3125" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.375" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.4375" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.5" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.5625" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.625" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.75" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 0.87" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 1" | 0" to 0.0001" | -0.0001" to 0" | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 1.5mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 2mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 2.5mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 3mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 4mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 5mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 6mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 8mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 10mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 12mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 14mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 17mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 19mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 22mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |
| 24mm | 0mm to 0.003mm | -0.003mm to 0mm | Rockwell C60 | Tool Steel | Green, Red | ASME B18.3 | 0000000 | 000000 |