Brass Feeler Gauges | McMaster-Carr

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Thicknesses Included

0.002" to 0.01" (0.001" Increments)

0.0025"

0.003" to 0.026" (0.001" Increments)

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Leaf Width

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32 Products

Feeler Gauge Sets

Flat Leaves with Round Ends

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.

Brass—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.

Steel, Brass—Sets with both steel and brass leaves include 30 steel leaves and six brass leaves.

Leaf-Securing Lock—Sets with a leaf-securing lock hold individual leaves in place so they don’t move and disrupt measurements.

			Leaf		Closed
	No. of Leaves	Thk. Included	Lg.	Wd.	Lg.	Wd.	Features		Each
Flat Leaves with Round Ends







				Brass

				6	0.006", 0.008", 0.01", 0.012", 0.014", 0.016"	2 5/8"	1/2"	3"	1/2"	—	8675A101	00000




						Steel, 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	8675A102	00000

Ready-to-Use Feeler Gauges

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

Brass—Brass gauges have good corrosion resistance.

					Each
	Thk.	Lg.	Wd.		1-11	12-Up
Brass



		0.001"	12"	1/2"	20385A31	00000	00000


		0.002"	12"	1/2"	20385A32	0000	0000
		0.003"	12"	1/2"	20385A33	0000	0000
		0.004"	12"	1/2"	20385A34	0000	0000
		0.005"	12"	1/2"	20385A35	0000	0000
		0.006"	12"	1/2"	20385A36	0000	0000
		0.007"	12"	1/2"	20385A37	0000	0000
		0.008"	12"	1/2"	20385A38	0000	0000
		0.009"	12"	1/2"	20385A39	0000	0000
		0.01"	12"	1/2"	20385A41	0000	0000
		0.015"	12"	1/2"	20385A42	0000	0000


		0.02"	12"	1/2"	20385A43	0000	0000
		0.025"	12"	1/2"	20385A44	0000	0000
		0.032"	12"	1/2"	20385A45	0000	0000

Feeler Gauge Assortments

Use these feeler gauge assortments to check gaps, alignment, and narrow slots. They have finished ends marked with thickness.

Brass—Brass gauge assortments have good corrosion resistance.

	Thicknesses Included	Lg.	Wd.	Container Type		Each
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	7652N11	000000


	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"	—	7652N12	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.

Brass—Brass gauge rolls have good corrosion resistance.

	Lg., ft.	Wd.	Container Type		Each
Brass



	0.001"	10	1/2"	Dispenser Box	2317A1	000000


	0.002"	10	1/2"	Dispenser Box	2317A2	00000
	0.003"	10	1/2"	Dispenser Box	2317A3	00000
	0.004"	10	1/2"	Dispenser Box	2317A4	00000
	0.005"	10	1/2"	Dispenser Box	2317A5	00000
	0.006"	10	1/2"	Dispenser Box	2317A6	00000
	0.007"	10	1/2"	Dispenser Box	2317A7	00000
	0.008"	10	1/2"	Dispenser Box	2317A8	00000
	0.009"	10	1/2"	Dispenser Box	2317A9	00000
	0.01"	10	1/2"	Dispenser Box	2317A11	00000
	0.015"	10	1/2"	Dispenser Box	2317A13	00000


	0.02"	10	1/2"	Dispenser Box	2317A14	00000
	0.025"	10	1/2"	Dispenser Box	2317A15	00000
	0.032"	10	1/2"	Dispenser Box	2317A16	00000