0.012" Feeler Gauges | McMaster-Carr

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	Material Material

Steel

Stainless Steel

Brass

	System of Measurement System of Measurement

Inch

	Thickness Thickness	Show

0.012"

	Thickness Thickness	Hide

0.002" to 0.01" (0.001"
increments)

0.002" to 0.021" (0.001"
increments)

0.002" to 0.025" (0.001"
increments)

0.002" to 0.035" (0.001"
increments)

0.0025"

0.003"

0.003" (Green)

0.003" to 0.01" (0.001"
increments)

0.003" to 0.025" (0.001"
increments)

0.003" to 0.026" (0.001"
increments)

0.003" to 0.03" (0.001"
increments)

0.0035"

0.004"

0.004" (Tan)

0.004" to 0.01" (0.001"
increments)

0.004" to 0.025" (0.001"
increments)

0.005"

0.005" (Blue)

0.005" to 0.02" (0.001"
increments)

1/16" to 1 1/16" (1/64"
increments)

0.075"

0.1"

0.100" to 0.500" (0.001"
increments)

0.125"

0.2"

0.500" to 1.000" (0.001"
increments)

2.5" Long Ruler Blade
Leaf

0.10 to 1.0 mm (0.05 mm
increments)

0.15 to 0.60 mm (0.05
mm increments)

	Length Length

12"

10 ft.

25 ft.

	Leaf Length Leaf Length

4 1/2"

	Leaf Style Leaf Style

Flat

Tapered

Offset

	End Style End Style

Round

	Number of Leaves Number of Leaves

	Closed Length Closed Length

	Number of Pieces Number of Pieces

	Frame Material Frame Material

Steel

	Closed Width Closed Width

1/2"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Container Type Container Type

Dispenser Box

Pouch

	Width Width

1/2"

	Maximum Tapered Gauge Thickness Measuring Maximum Tapered Gauge Thickness Measuring

3/16"

	Manufacturer Model Number Manufacturer Model Number

	Wire Gauge Size Wire Gauge Size

1/16"

1/8"

	Minimum Tapered Gauge Thickness Measuring Minimum Tapered Gauge Thickness Measuring

1/64"

	Tapered Gauge Thickness Measuring Increments Tapered Gauge Thickness Measuring Increments

1/64"

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21 Products

Economy Feeler Gauge Sets

With Flat Round Leaves

With Offset Round Leaves

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
Tool Steel
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	00000
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	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
Offset Round Leaves
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
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	000000
301 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"	172AS	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.

		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

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

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

Ready-to-Use Feeler Gauges

Check gaps, alignment, and narrow slots. These feeler gauges have finished ends marked with thickness.

Steel gauges are polished.

302/304 stainless steel gauges are more corrosion resistant than brass and steel.

316 stainless steel gauges have the best corrosion resistance.

				Each
Thick.	Lg.	Wd.		1-11	12-Up
Steel
0.012"	12"	1/2"	0000000	00000	00000
302/304 Stainless Steel
0.012"	12"	1/2"	00000000	0000	0000
316 Stainless Steel
0.012"	12"	1/2"	000000	0000	0000

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.	Container Type		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"	Pouch	0000000	000000
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

Feeler Gauge Rolls

Cut to your desired length. These gauge rolls let you check gaps, alignment, and narrow slots. Thickness is marked every 6 inches.

Steel gauge rolls are polished.

302/304 stainless steel gauge rolls are more corrosion resistant than brass and steel.

316 stainless steel gauge rolls have the best corrosion resistance.

Steel
Thick.	Lg., ft.	Wd.	Container Type		Each
0.012"	25	1/2"	Dispenser Box	0000000	000000
302/304 Stainless Steel
0.012"	10	1/2"	Dispenser Box	0000000	00000
316 Stainless Steel
0.012"	10	1/2"	Dispenser Box	000000	00000