Feeler Gauge Sets | McMaster-Carr

To keep the set complete, gauge leaves are riveted together in a fan design that folds up for portability. These sets are used to check gaps, alignment, and narrow slots. Each leaf is marked with thickness.

Stainless steel gauge sets are more corrosion resistant than steel.

Leaf-securing locks hold individual gauge leaves in place.

		Leaf		Closed
No. of Leaves	Thick.	Lg.	Wd.	Lg.	Wd.	Features		Each
Flat Round Leaves
Steel
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	0000000
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	00000
35	0.0015", 0.002" to 0.035" (0.001" increments)	3"	1/2"	3 1/2"	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	00000
25	0.0015", 0.002" to 0.025" (0.001" increments)	24"	1/2"	24 1/4"	1/2"	Leaf-Securing Lock	00000000	000000
Offset Round Leaves
Steel
16	0.005" to 0.02" (0.001" increments)	4"	1/2"	4"	1/2"	__	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

Tool Steel

Stainless Steel

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	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"	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, 0.05 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
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
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.

		Leaf		Closed
No. of Leaves	Thick.	Lg.	Wd.	Lg.	Wd.	Manufacturer Model No.		Each
Tool Steel
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	0000000
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

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

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.

		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
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

Economy 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.

		Leaf		Closed
No. of Leaves	Thick.	Lg.	Wd.	Lg.	Wd.		Each
Steel
9	0.0015", 0.002", 0.003", 0.004", 0.006", 0.008", 0.01", 0.012", 0.015"	3"	1/2"	3 1/4"	1/2"	000000	000000
26	0.0015", 0.002", 0.0025", 0.003" to 0.025" (0.001" increments)	3"	1/2"	3 1/4"	1/2"	000000	00000

Starrett Feeler Gauge Sets for Tight Spots with Calibration Certificate

A certificate of calibration traceable to NIST states that this set has passed a test for accuracy. It's used to check gaps, alignment, and narrow slots. The leaves have narrow ends to measure thickness in areas where standard feeler gauges don’t fit. Set includes 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.

		Leaf		Closed
No. of Leaves	Thick.	Lg.	Wd.	Lg.	Wd.	Manufacturer Model No.		Each
Tool Steel
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	0000000

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

Starrett No. 267

Starrett No. 269A

Starrett No. 269B

Width markings on the leaves let you for check diameters and widths. Sets include leaves in a variety of thicknesses riveted together in a fan design that folds up for portability.

			Closed
No. of Leaves	Thick.	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

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.

Steel
No. of Pieces	Thick.	Lg.	Wd.		Each
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"	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"	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"	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

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