Clearance Gauges | McMaster-Carr

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Thickness

System of Measurement

Material

Thicknesses Included

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)

Leaf Length

Length

Measuring Sizes

Leaf Type

Width

Color

Number of Leaves

End Style

Maximum Thickness Measured

Frame Material

RoHS

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Closed Length

Thickness Measuring Increments

Container Type

Manufacturer Model Number

Minimum Thickness Measured

Leaf Width

Closed Width

Number of Pieces

388 Products

Plastic Clearance Gauges

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 paper gauge. Each marking on the gauge corresponds to a different clearance measurement.

Feeler Gauges

Starrett Tapered-Thickness Feeler Gauges

Check a range of thicknesses with a single tapered gauge.

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.

Tapered-Thickness Feeler Gauges

Replace an entire feeler gauge set with one of these tapered gauges that lets you check a range of thicknesses.

Feeler Gauge Holders

Keep your feeler gauge in position with the cam-lock clamps on these holders.

Color-Coded Feeler Gauges

Since each thickness is a different color, there’s no need to read the feeler gauge to tell your measurement.

Ready-to-Use Feeler Gauges

Gauges are 12” long and have finished ends marked with thickness.

Feeler Gauge Assortments

Use these feeler gauge assortments to check gaps, alignment, and narrow slots.

Feeler Gauge Rolls

Cut to your desired length.

Spark Plug Feeler Gauges

Keep spark plugs working efficiently. These feeler gauges slide between the electrodes to measure the gap.

Tapered-Width Feeler Gauges

Confirm slots, holes, and mating surfaces on parts are properly sized. Narrow at one end, these feeler gauges measure a range of sizes.

Feeler Gauge Sets

Keep a variety of leaf thicknesses on hand to confirm gaps are within tolerance.

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.

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.

Color-Coded Feeler Gauge Sets

With leaves that are color coded based on thickness, you can read your measurements at a glance.

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.

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.

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.

Feeler Gauge Sets for Tight Spots

Leaves have narrow ends to measure thickness where standard feeler gauges can’t fit.

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.