Plastic Feeler Gauges | McMaster-Carr

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Material

System of Measurement

Thickness

Thicknesses Included

Leaf Length

Color

Number of Leaves

Measuring Sizes

Length

Leaf Type

End Style

Maximum Thickness Measured

Width

DFARS Specialty Metals

Exempt

RoHS

Compliant

REACH

Compliant

Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Thickness Measuring Increments

0.001"

0.05 mm

Performance

Color Coded

Minimum Thickness Measured

Leaf Width

Width Measured

Width Measuring Increments

0.1 mm

Measuring Mechanism

Leaf

Maximum Width Measured

15 mm

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42 Products

Color-Coded Feeler Gauges

Since each thickness is a different color, there’s no need to read the feeler gauge to tell your measurement. They are used to check gaps, alignment, and narrow slots. Gauges are nonmagnetic, nonmarring, noncorrosive, nonsparking, and resistant to oil.

	Color	Lg.	Wd.	Pkg. Qty.		Pkg.
Plastic



	0.001"	Amber	12"	1/2"	5	21035A11	00000


	0.0015"	Purple	12"	1/2"	5	21035A12	0000
	0.002"	Red	12"	1/2"	5	21035A13	0000
	0.003"	Green	12"	1/2"	5	21035A14	0000
	0.004"	Beige	12"	1/2"	5	21035A15	0000
	0.005"	Blue	12"	1/2"	5	21035A16	0000
	0.0075"	Cream	12"	1/2"	5	21035A17	0000
	0.01"	Brown	12"	1/2"	5	21035A18	0000
	0.0125"	Black	12"	1/2"	5	21035A19	0000
	0.015"	Pink	12"	1/2"	5	21035A21	0000
	0.02"	Yellow	12"	1/2"	5	21035A22	00000


	0.025"	White	12"	1/2"	5	21035A23	00000
	0.03"	Orange	12"	1/2"	5	21035A24	00000
	0.04"	Clear	12"	1/2"	3	21035A28	00000
	0.05"	Clear	12"	1/2"	3	21035A29	00000
	0.06"	Clear	12"	1/2"	3	21035A31	00000

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	Thicknesses Included	Lg.	Wd.		Each
Plastic



		5	0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear)	5"	1/2"	82755A15	000000


		5	0.025" (White), 0.030" (Orange), 0.040" (Clear), 0.050" (Clear), 0.060" (Clear)	12"	1/2"	82755A16	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"	82755A17	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"	82755A18	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"	82755A19	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"	82755A13	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"	82755A11	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"	82755A21	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"	82755A22	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"	82755A12	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"	82755A23	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"	82755A14	00000

Plastic Clearance Feeler Gauges


Step 1: Lay Strip Flat	Step 2: Compress Components

Step 3: Match Flattened Strip to Reading Card

Squish these tiny plastic strips between two components to measure the clearance between them. Once compressed, match the widest part of the flattened strip to the markings on the reading card. Each marking on the card corresponds to a different clearance measurement. For large bearings and wide surfaces, use two or more strips to check for inconsistency.

Originally designed to check clearances in automotive bearings, these strips also work with cylinder heads, flanges, and other fitted parts. Although generally less precise than calipers and hole gauges, they take clearance measurements in spots that can't be reached after the part is assembled.

						Small Pack			Large Pack
	Inch Measuring Sizes	Metric Measuring Sizes	Strip Lg.	Reading Card Material	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Plastic



		—	0.0180 mm, 0.0200 mm, 0.0220 mm, 0.0250 mm, 0.0300 mm, 0.0350 mm, 0.0400 mm, 0.0450 mm	4"	Paper	Gray	10	6851N21	000000	100	6851N11	000000


		0.0010", 0.0015", 0.0020", 0.0025", 0.0030", 0.0040", 0.0050", 0.0060", 0.0070"	0.0250 mm, 0.0380 mm, 0.0500 mm, 0.0630 mm, 0.0760 mm, 0.1000 mm, 0.1250 mm, 0.1500 mm, 0.1750 mm	4"	Paper	Red	10	6851N17	00000	100	6851N12	00000
		0.0040", 0.0050", 0.0060", 0.0070", 0.0080", 0.0090", 0.0100"	0.1000 mm, 0.1250 mm, 0.1500 mm, 0.1750 mm, 0.2000 mm, 0.2250 mm, 0.2500 mm	4"	Paper	Blue	10	6851N23	00000	100	6851N13	00000
		0.0070", 0.0080", 0.0090", 0.0100", 0.0120", 0.0140", 0.0160", 0.0180", 0.0200"	0.1750 mm, 0.2000 mm, 0.2250 mm, 0.2500 mm, 0.3000 mm, 0.3500 mm, 0.4000 mm, 0.4500 mm, 0.5000 mm	4"	Paper	Green	10	6851N24	00000	100	6851N14	000000
		0.0200", 0.0240", 0.0280", 0.0320", 0.0360", 0.0400"	0.5000 mm, 0.6000 mm, 0.7000 mm, 0.8000 mm, 0.9000 mm, 1.0000 mm	4"	Paper	Brown	5	6851N25	00000	30	6851N15	00000
		0.0300", 0.0400", 0.0500", 0.0600", 0.0700"	0.7500 mm, 1.0000 mm, 1.2500 mm, 1.5000 mm, 1.7500 mm	4"	Paper	Black	5	6851N26	00000	25	6851N16	00000

Tapered-Width Feeler Gauges

Gauge with Breakaway Notches

Confirm slots, holes, and mating surfaces on parts are properly sized. Narrow at one end, these feeler gauges measure a range of sizes. Slide them into a hole until the gauge sits snug and then read the width measurement. All have a range of width markings for quick reference. Made of either stainless steel or plastic, they resist corrosion.

Plastic—Plastic feeler gauges won’t spark if struck and are nonmagnetic. This makes them safe to use with spark plugs and other electronic ignitions. Since they’re nonmarring, they won’t scratch nearby surfaces. Snap away lengths at the breakaway notches to get a snug fit across the width of shallow holes.

	Wd.
	Measured Range	Measuring Increments	Lg.	Wd.	Features		Each
Plastic



		1 mm to 15 mm	0.1 mm	5 7/8"	11/16"	Breakaway Notches	7811N11	000000

Spark Plug Feeler Gauges

Keep spark plugs working efficiently. These feeler gauges slide between the electrodes to measure the gap. If the gap is incorrect, they have an adjustment tool to bend the electrode where you need it.

Leaf Measuring

Leaf-measuring gauges measure along their length—they taper toward the end.

	Thk. Measured Range		Thk. Measuring Increments				Handle
	Inch	Metric, mm	Inch	Metric, mm	Lg.	Wd.	Material	Lg.	Features		Each
Zinc



		0.020" to 0.080"	0.600 to 2.000	0.001"	0.05	5 1/2"	1/2"	Plastic	2 3/4"	Gap Adjustment Tool	6693N13	00000