Feeler Gauge Sets



Keep a variety of leaf thicknesses on hand to confirm gaps are within tolerance. These gauges are often used to check the clearance around bearings and other machine parts, making sure there’s enough space to avoid friction and prevent wear. The leaves are riveted together in a folding fan design, so they’re easy to carry. Each leaf is marked with thickness for quick reference.
Tapered leaves are often used for go/no-go checks. The end of each leaf is 0.002" thinner than its listed thickness. If the tip fits but the rest of the body doesn’t, your gap is within tolerance. Offset leaves are angled to access gaps that flat leaves can’t reach.
Steel and tool steel leaves are stronger, harder, and more wear resistant than stainless steel and brass leaves. Brass leaves have good corrosion resistance and are nonmarring to prevent scratches. They’re also nonmagnetic, so you can safely check spark plugs and other electronic ignitions without attracting debris. Stainless steel leaves are less likely to rust than steel and tool steel leaves.
Sets with both steel and brass leaves include 30 steel leaves and six brass leaves.
Sets with a leaf-securing lock hold individual leaves in place so they don’t move and disrupt measurements.
Leaf | Closed | |||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Lg. | Wd. | Features | Each | |
Flat Round Leaves | ||||||||
Steel | ||||||||
17 | 0.01", 0.012", 0.013", 0.015", 0.016", 0.017", 0.018", 0.019", 0.02", 0.022", 0.024", 0.025", 0.026", 0.028", 0.03", 0.032", 0.035" | 1 3/4" | 1/4" | 2 3/16" | 1/4" | __ | 00000000 | 00000 |
25 | 0.0015", 0.002" to 0.021" (0.001" increments), 0.025", 0.027", 0.03", 0.04" | 24" | 1/2" | 24 1/4" | 1/2" | Leaf-Securing Lock | 0000000 | 000000 |
25 | 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 to 1.0 mm (0.05 mm increments) | 12" | 1/2" | 12 1/4" | 1/2" | __ | 000000 | 000000 |
35 | 0.0015", 0.002" to 0.035" (0.001" increments) | 3" | 1/2" | 3 1/2" | 1/2" | Leaf-Securing Lock | 00000000 | 00000 |
Brass | ||||||||
6 | 0.006", 0.008", 0.01", 0.012", 0.014", 0.016" | 2 5/8" | 1/2" | 3" | 1/2" | __ | 00000000 | 0000 |
Steel and Brass | ||||||||
36 | Steel: 0.002", 0.0025", 0.003" to 0.026" (0.001" increments), 0.028", 0.03", 0.032", 0.035", Brass: 0.006", 0.008", 0.01", 0.012", 0.014", 0.016" | 3" | 1/2" | 3 7/16" | 1/2" | Leaf-Securing Lock | 00000000 | 00000 |
Tool Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 9" | 1/2" | 9 1/8" | 1/2" | Leaf-Securing Lock | 000000 | 00000 |
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 12" | 1/2" | 12 3/8" | 1/2" | Leaf-Securing Lock | 000000 | 00000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 3/8" | 1/2" | Leaf-Securing Lock | 000000 | 0000 |
15 | 0.06 mm, 0.07 mm, 0.08 mm, 0.10 mm, 0.15 to 0.60 mm (0.05 mm increments), 0.70 mm | 3" | 1/2" | 3 1/4" | 1/2" | __ | 0000000 | 0000 |
16 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.011", 0.012", 0.013", 0.014", 0.016", 0.018", 0.02", 0.022", 0.025", 2.5" Long Ruler Blade Leaf | 3" | 1/2" | 3 3/8" | 1/2" | Leaf-Securing Lock | 0000000 | 0000 |
22 | 0.004" to 0.025" (0.001" increments) | 2 5/16" | 1/2" | 2 1/2" | 1/2" | Leaf-Securing Lock | 000000 | 00000 |
25 | 0.0015", 0.002" to 0.021" (0.001" increments), 0.025", 0.027", 0.03", 0.04" | 12" | 1/2" | 12 3/8" | 1/2" | Leaf-Securing Lock | 0000000 | 00000 |
25 | 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 to 1.0 mm (0.05 mm increments) | 3" | 1/2" | 3 3/8" | 1/2" | __ | 0000000 | 00000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 3/8" | 1/2" | Leaf-Securing Lock | 000000 | 00000 |
Stainless Steel | ||||||||
18 | 0.0015", 0.002", 0.0025", 0.003", 0.0035", 0.004" to 0.01" (0.001" increments), 0.012", 0.015", 0.016", 0.018", 0.02", 0.025" | 3" | 1/2" | 3 1/4" | 1/2" | Leaf-Securing Lock | 00000000 | 00000 |
25 | 0.0015", 0.002" to 0.025" (0.001" increments) | 12" | 1/2" | 12 3/8" | 1/2" | Leaf-Securing Lock | 0000000 | 000000 |
25 | 0.0015", 0.002" to 0.025" (0.001" increments) | 24" | 1/2" | 24 1/4" | 1/2" | Leaf-Securing Lock | 00000000 | 000000 |
Flat Tapered Leaves | ||||||||
Steel | ||||||||
22 | 0.004" to 0.027" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | Leaf-Securing Lock | 00000000 | 00000 |
Offset Round Leaves | ||||||||
Steel | ||||||||
16 | 0.005" to 0.02" (0.001" increments) | 3 1/2" | 1/2" | 4" | 1/2" | __ | 00000000 | 00000 |
26 | 0.005" to 0.03" (0.001" increments) | 4" | 1/2" | 8 1/4" | 1/2" | Leaf-Securing Lock | 00000000 | 00000 |
Tool Steel | ||||||||
12 | 0.008", 0.01", 0.012", 0.013", 0.014", 0.015", 0.016", 0.018", 0.019", 0.02", 0.025", 0.026" | 4" | 1/2" | 4 1/4" | 1/2" | Leaf-Securing Lock | 0000000 | 00000 |
Starrett Feeler Gauge Sets


Check gaps, alignment, and narrow slots with these feeler gauge sets that include leaves in a variety of thicknesses riveted together in a fan design. Sets fold up for portability. Each leaf is marked with thickness. Leaf-securing locks hold individual gauge leaves in place.
Tool steel gauge sets are stronger, harder, and more wear resistant than stainless steel.
Stainless steel gauge sets are less likely to rust than tool steel.
Leaf | Closed | |||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Lg. | Wd. | Manufacturer Model No. | Each | |
Tool Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 12" | 1/2" | 12 7/16" | 1/2" | 172E | 000000 | 0000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172A | 000000 | 00000 |
13 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.02", 0.03", 0.04", 0.075", 0.1", 0.2" | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467 | 0000000 | 000000 |
13 | 0.04 mm, 0.03 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 3" | 1/2" | 3 7/16" | 1/2" | 173MA | 0000000 | 00000 |
13 | 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 1.0 mm, 2.0 mm, 3.0 mm, 5.0 mm | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467M | 0000000 | 000000 |
20 | 0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.35 mm, 0.40 mm, 0.45 mm, 0.50 mm, 0.55 mm, 0.60 mm, 0.65 mm, 0.70 mm, 0.75 mm, 0.80 mm, 0.85 mm, 0.90 mm, 0.95 mm, 1.0 mm | 3" | 1/2" | 3 7/16" | 1/2" | 66MA | 0000000 | 00000 |
22 | 0.0015", 0.002", 0.0025", 0.003", 0.004", 0.005", 0.006", 0.008", 0.007", 0.009", 0.01", 0.012", 0.013", 0.014", 0.015", 0.016", 0.018", 0.02", 0.022", 0.025", 0.03", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 572B | 0000000 | 00000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66 | 000000 | 00000 |
31 | 0.0015", 0.002", 0.0025", 0.003" to 0.026" (0.001" increments), 0.028", 0.03", 0.032", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 66B | 0000000 | 00000 |
301 Stainless Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 12" | 1/2" | 12 7/16" | 1/2" | 172ES | 0000000 | 000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172AS | 0000000 | 00000 |
13 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.02", 0.03", 0.04", 0.075", 0.1", 0.2" | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467S | 0000000 | 000000 |
31 | 0.0015", 0.002", 0.0025", 0.003" to 0.026" (0.001" increments), 0.028", 0.03", 0.032", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 66BS | 0000000 | 000000 |
Starrett Feeler Gauge Sets with Calibration Certificate

To ensure accurate readings, these sets come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They are used to check gaps, alignment, and narrow slots. Gauge leaves are riveted together in a fan design that folds up for portability. Each leaf is marked with thickness. Leaf-securing locks hold individual gauge leaves in place.
Tool steel gauge sets are stronger, harder, and more wear resistant than stainless steel gauge sets.
Stainless steel gauge sets are less likely to rust than tool steel gauge sets.
For technical drawings and 3-D models, click on a part number.
Leaf | Closed | |||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Lg. | Wd. | Manufacturer Model No. | Each | |
Tool Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 12" | 1/2" | 12 7/16" | 1/2" | 172E | 00000000 | 0000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172A | 00000000 | 000000 |
13 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.02", 0.03", 0.04", 0.075", 0.1", 0.2" | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467 | 0000000 | 000000 |
13 | 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 3" | 1/2" | 3 7/16" | 1/2" | 173MA | 00000000 | 000000 |
13 | 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 1.0 mm, 2.0 mm, 3.0 mm, 5.0 mm | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467M | 00000000 | 000000 |
20 | 0.05 mm to 1.0 mm (0.05 mm increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66MA | 00000000 | 000000 |
22 | 0.0015", 0.002", 0.0025", 0.003", 0.004", 0.005", 0.006", 0.007", 0.008", 0.009", 0.01", 0.012", 0.013", 0.014", 0.015", 0.016", 0.018", 0.02", 0.022", 0.025", 0.03", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 572B | 00000000 | 000000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66 | 0000000 | 000000 |
31 | 0.0015", 0.002", 0.0025", 0.003" to 0.026" (0.001" increments), 0.028", 0.03", 0.032", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 66B | 00000000 | 000000 |
301 Stainless Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.005", 0.006", 0.008", 0.01", 0.015" | 12" | 1/2" | 12 7/16" | 1/2" | 172ES | 00000000 | 000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172AS | 00000000 | 000000 |
13 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.02", 0.03", 0.04", 0.075", 0.1", 0.2" | 4 1/2" | 1/2" | 4 15/16" | 1/2" | 467S | 00000000 | 000000 |
31 | 0.0015", 0.002", 0.0025", 0.003" to 0.026" (0.001" increments), 0.028", 0.03", 0.032", 0.035" | 3" | 1/2" | 3 7/16" | 1/2" | 66BS | 00000000 | 000000 |
Color-Coded Feeler Gauge Sets

With leaves that are color coded based on thickness, you can read your measurements at a glance. These gauge sets are used to check gaps, alignment, and narrow slots. Gauge leaves are riveted together in a fan design to keep the set complete; the set folds up for portability. Sets are nonmagnetic, nonmarring, noncorrosive, nonsparking, and resistant to oil.
Leaf | |||||
---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Each | |
Plastic | |||||
5 | 0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear) | 5" | 1/2" | 00000000 | 000000 |
5 | 0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear) | 12" | 1/2" | 00000000 | 00000 |
7 | 0.0005 (Silver), 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue) | 5" | 1/2" | 00000000 | 0000 |
7 | 0.0005 (Silver), 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue) | 12" | 1/2" | 00000000 | 0000 |
8 | 0.001" (Amber), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.010" (Brown), 0.020" (Yellow), 0.040" (Clear) | 5" | 1/2" | 00000000 | 00000 |
8 | 0.001" (Amber), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.010" (Brown), 0.020" (Yellow), 0.040" (Clear) | 12" | 1/2" | 00000000 | 00000 |
13 | 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange) | 5" | 1/2" | 00000000 | 00000 |
13 | 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange) | 12" | 1/2" | 00000000 | 00000 |
14 | 0.0005 (Silver), 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange) | 5" | 1/2" | 00000000 | 00000 |
14 | 0.0005 (Silver), 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange) | 12" | 1/2" | 00000000 | 00000 |
16 | 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear) | 5" | 1/2" | 00000000 | 00000 |
16 | 0.001" (Amber), 0.0015" (Purple), 0.002" (Red), 0.003" (Green), 0.004" (Tan), 0.005" (Blue), 0.0075" (Cream), 0.010" (Brown), 0.0125" (Black), 0.015" (Pink), 0.020" (Yellow), 0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear) | 12" | 1/2" | 00000000 | 00000 |
Combination Wire, Width, and Thickness Feeler Gauge Sets

These sets combine a wire gauge, a tapered-width feeler gauge, and a set of feeler gauges for tight spots in one tool. The tapered-width gauge is designed for measuring hole and slot widths and diameters. The feeler gauge leaves check the thickness of slots, gaps, and alignment; each leaf is marked with thickness. Leaves are riveted together in a fan design that folds up for portability.
Tapered Gauge Thick. Measuring | Closed | |||||||
---|---|---|---|---|---|---|---|---|
Thick. | Range | Increments | Wire Gauge Size | Leaf Lg. | Lg. | Wd. | Each | |
Steel | ||||||||
0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015", 0.0625" | 1/64" to 3/16" | 1/64" | 1/16", 1/8", 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 | 4 1/2" | 4 15/16" | 1/2" | 00000000 | 0000000 |
0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm, 0.3mm, 1mm, 2mm | 0.5mm to 5mm | 0.5mm | 1/16", 1/8", 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 | 4 15/16" | 4 15/16" | 1/2" | 0000000 | 000000 |
Tapered-Width Feeler Gauge Sets


Check slot widths and hole diameters with the markings on these gauges. Leaves in a variety of sizes are riveted together in a fan design—spread them out for use or fold them in for portability. Each leaf narrows toward the tip to measure a range of sizes. Slide them into a hole until the gauge sits snug and then read the width measurement.
Steel gauges are stronger, harder, and more wear resistant than stainless steel gauges.
Stainless steel gauges are less likely to rust than steel gauges.
Closed | ||||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Wd. | Leaf Lg. | Lg. | Wd. | Manufacturer | Manufacturer Model No. | Each | |
Steel | ||||||||
4 | 1/16" to 1 1/16" (1/64" increments) | 5 7/32" | 5 1/4" | 1" | Starrett | 267 | 0000000 | 0000000 |
8 | 0.100" to 0.500" (0.001" increments) | 2 17/32" | 2 17/32" | 1/2" | Starrett | 269A | 0000000 | 000000 |
10 | 0.500" to 1.000" (0.001" increments) | 2 25/32" | 2 25/32" | 1" | Starrett | 269B | 0000000 | 000000 |
Stainless Steel | ||||||||
4 | 1 mm to 29 mm (.05 mm increments) | 5 1/4" | 5 1/4" | 1 1/8" | __ | __ | 0000000 | 00000 |
Starrett Feeler Gauge Sets for Tight Spots

To measure thickness in areas where standard feeler gauges don’t fit, these sets have leaves with narrow ends. They're used to check gaps, alignment, and narrow slots. Sets include leaves in a variety of thicknesses that are riveted together in a fan design that folds up for portability. Each leaf is marked with thickness. Leaf-securing locks hold individual gauge leaves in place.
Tool steel gauges are stronger, harder, and more resistant to scratches and wear than stainless steel gauges.
Stainless steel gauges are less likely to rust than tool steel gauges.
Leaf | Closed | |||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Lg. | Wd. | Manufacturer Model No. | Each | |
Tool Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.006", 0.008", 0.012", 0.015", 0.01" | 6" | 1/2" | 6 7/16" | 1/2" | 172CT | 000000 | 000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.012", 0.015", 0.01" | 3" | 1/2" | 2 3/4" | 1/2" | 172AT | 000000 | 00000 |
13 | 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 3" | 1/2" | 3 7/16" | 1/2" | 173MAT | 0000000 | 00000 |
13 | 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 6" | 1/2" | 6 7/16" | 1/2" | 173MCT | 00000000 | 000000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66T | 000000 | 00000 |
Stainless Steel | ||||||||
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.012", 0.015", 0.01" | 3" | 1/2" | 3 7/16" | 1/2" | 172ATS | 00000000 | 00000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66TS | 00000000 | 000000 |
Feeler Gauge Sets for Tight Spots

Leaves have narrow ends to measure thickness where standard feeler gauges can’t fit. These sets are for checking gaps, alignment, and narrow slots. They include leaves in a variety of thicknesses riveted together in a fan design that folds up for portability. Each leaf is marked with thickness. Leaf-securing locks hold individual gauge leaves in place.
Starrett Feeler Gauge Sets for Tight Spots with Calibration Certificate

A certificate of calibration traceable to NIST states that these sets have passed a test for accuracy. They’re used to check small gaps, narrow slots, and alignment. The leaves have a narrow end to measure thickness in areas where standard feeler gauges don’t fit. For example, they can measure gaps when setting engine components such as spark plugs to make sure there’s enough space so friction doesn’t lead to inefficiency.
Sets include leaves in a variety of thicknesses that are riveted together in a fan design that folds up for portability. Each leaf is marked with thickness. Leaf-securing locks hold individual gauge leaves in place.
Tool steel gauge sets are stronger, harder, and more wear resistant than stainless steel gauge sets.
Stainless steel gauge sets are less likely to rust than tool steel gauge sets.
For technical drawings and 3-D models, click on a part number.
Leaf | Closed | |||||||
---|---|---|---|---|---|---|---|---|
No. of Leaves | Thick. | Lg. | Wd. | Lg. | Wd. | Manufacturer Model No. | Each | |
Tool Steel | ||||||||
8 | 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 6" | 1/2" | 6 7/16" | 1/2" | 172CT | 00000000 | 0000000 |
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172AT | 00000000 | 000000 |
13 | 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 3" | 1/2" | 3 7/16" | 1/2" | 173MAT | 00000000 | 000000 |
13 | 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm | 6" | 1/2" | 6 7/16" | 1/2" | 173MCT | 00000000 | 000000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66T | 0000000 | 000000 |
Stainless Steel | ||||||||
9 | 0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015" | 3" | 1/2" | 3 7/16" | 1/2" | 172ATS | 00000000 | 000000 |
26 | 0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments) | 3" | 1/2" | 3 7/16" | 1/2" | 66TS | 00000000 | 000000 |
Starrett Tapered-Thickness Feeler Gauges

Check a range of thicknesses with a single gauge that tapers in thickness. It’s used to check gaps, alignment, and narrow slots.
Thick. Measuring Range | Thick. Measuring Increments | |||||||
---|---|---|---|---|---|---|---|---|
Inch | Metric | Inch | Metric | Lg. | Wd. | Manufacturer Model No. | Each | |
Steel | ||||||||
0.010" to 0.150" | 0.300mm to 4.000mm | 0.001" | 0.05mm | 6 1/4" | 7/16" | 270 | 0000000 | 0000000 |
Starrett Tapered-Thickness Feeler Gauges with Calibration Certificate

A certificate of calibration traceable to NIST states that this gauge has passed a test for accuracy. Often used to check gaps, alignment, and narrow slots, it tapers in thickness for checking a range of thicknesses.
Thick. Measuring Range | Thick. Measuring Increments | |||||||
---|---|---|---|---|---|---|---|---|
Inch | Metric | Inch | Metric | Lg. | Wd. | Manufacturer Model No. | Each | |
Steel | ||||||||
0.010" to 0.150" | 0.300 mm to 4.000mm | 0.001" | 0.05mm | 6 1/4" | 7/16" | 270 | 0000000 | 0000000 |
Feeler Gauge Assortments

Use these feeler gauge assortments to check gaps, alignment, and narrow slots. They have finished ends marked with thickness.
Steel gauge assortments are polished.
Brass gauge assortments have good corrosion resistance.
302/304 stainless steel gauge assortments are more corrosion resistant than brass and steel.
No. of Pieces | Thick. | Lg. | Wd. | Container Type | Each | |
Steel | ||||||
---|---|---|---|---|---|---|
20 | 0.001", 0.0015", 0.002" to 0.01" (0.001" increments), 0.012", 0.014", 0.015", 0.016", 0.018", 0.02", 0.022", 0.024", 0.025" | 6" | 1/2" | Pouch | 0000000 | 000000 |
32 | 0.001", 0.0015", 0.002", 0.0025", 0.003" to 0.03" (0.001" increments) | 12" | 1/2" | __ | 000000 | 00000 |
48 | 0.001", 0.0015", 0.002", 0.0025", 0.003" to 0.01" (0.001" increments), 0.015", 0.02", 0.025", 0.03" | 12" | 1/2" | __ | 000000 | 00000 |
Brass | ||||||
20 | 0.001", 0.0015", 0.002" to 0.01" (0.001" increments), 0.012", 0.014", 0.015", 0.016", 0.018", 0.02", 0.023", 0.025", 0.03" | 6" | 1/2" | Pouch | 0000000 | 00000 |
20 | 0.001", 0.0015", 0.002" to 0.01" (0.001" increments), 0.012", 0.014", 0.015", 0.016", 0.018", 0.02", 0.023", 0.025", 0.03" | 12" | 1/2" | __ | 0000000 | 00000 |
302/304 Stainless Steel | ||||||
20 | 0.0005", 0.001", 0.0015", 0.002", 0.0025", 0.003" to 0.01" (0.001" increments), 0.012", 0.015", 0.016", 0.018", 0.02", 0.025", 0.031" | 6" | 1/2" | Pouch | 0000000 | 00000 |
20 | 0.0005", 0.001", 0.0015", 0.002", 0.0025", 0.003" to 0.01" (0.001" increments), 0.012", 0.015", 0.016", 0.018", 0.02", 0.025", 0.031" | 12" | 1/2" | __ | 0000000 | 00000 |
Coating-Thickness Gauge Inspection Kits

With three included probes, the gauge in these kits goes beyond a typical check for coating thickness. It also measures surface profile and environmental conditions, such as temperature. Kits include everything you need for thorough tests whether you’re inspecting a surface that’s painted, powdered, or plated. Just swap out probes to measure what you need. Use the plate and shims to practice measurements and ensure the probe is working properly. The glass plate and metal shims work with the surface profile probe. The plastic shims work with the coating thickness probe. Easy to use, the gauge’s touch screen guides you through measurements step-by-step.
Switch between scan modes for full control over how you measure, from single-point tests to continuous readings. You can even find stats and create presets for repeated measurements. For long-term tracking, the gauge stores up to 250,000 results from multiple probes in up to 1,000 batches. See trends in real time with live graphing. To help you comply with ISO, ASTM, SSPC-PA, and IMO coating standards, set criteria for go/no-go tests.
Thanks to a compatible app, you can add notes and images to readings or make reports on the go. For exporting into programs such as Excel or making multimedia reports in templates, use the included software.
Choose kits based on coating and surface types. Kits with probes for both nonconductive and nonmagnetic coatings include a thickness probe that automatically identifies the coating and surface material. Kits with probes for 0-250 mil coating thickness are ideal for testing epoxies, flame-retardant finishes, and other thick coatings.
A built-in probe lets you use the gauge one-handed—no extended probe to maneuver. A detachable probe means you can measure underwater and up to 3 ft. away. The waterproof probes are at the end of sealed cable, so you can reach surfaces without submerging the gauge.
For Coating Thick. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Coating Type | Mil | Microns | Accuracy | Reading Storage Cap. | Batteries Included | Data Connection Type | Includes | Features | Specifications Met | Each | |
For Use On Aluminum, Copper, Stainless Steel, Steel | |||||||||||
Built-In Probe | |||||||||||
Nonconductive, Nonmagnetic | 0-60 | 0-1,500 | ±1% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 000000000 |
Detachable Probe with 3 ft. Cable | |||||||||||
Nonconductive, Nonmagnetic | 0-60 | 0-1,500 | ±1% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 00000000 |
For Use On Steel | |||||||||||
Built-In Probe | |||||||||||
Nonmagnetic | 0-60 | 0-1,500 | ±1% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 00000000 |
Nonmagnetic | 0-250 | 0-6,000 | ±3% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 00000000 |
Detachable Probe with 3 ft. Cable | |||||||||||
Nonmagnetic | 0-60 | 0-1,500 | ±1% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 00000000 |
Nonmagnetic | 0-250 | 0-6,000 | ±3% | 250,000 | Yes | Bluetooth, USB | Coating Thickness Probe Environmental Probe Surface Profile Probe Gauge Body Zero-Setting Glass Plate Plastic and Metal Shims Lens Shield Rubber Holster Wrist Strap USB Cable Case | Alarm Batch Mode Limited Count Coverage Scan Mode Live Graphing Normal Scan Mode Statistics Scan Mode Zero-Position Memory (ABS) Zero-Set Button | ASTM D4417, ISO 19840 | 0000000 | 00000000 |