Inside Micrometers | McMaster-Carr

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System of Measurement

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Measures

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Container Type

REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

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Number of Extension Rods

Number of Gauges

Thimble Type

Head Travel

Overall Length

Inside Size Measured

Handle Length

Number of Heads

Number of Anvils

Battery Size

AAA

Button/Coin Cell

Extension Rod Diameter

227 Products

Measuring and Inspecting

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Inside Hole Micrometer Spacing Collars

Replace the collar on your micrometer to connect extension rods

1 product

Inside Hole Micrometer Handles

Screw into your micrometer head to extend its reach for measuring deep holes

1 product

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

128 products

Inside Hole Calipers

Measure hard-to-reach areas, such as internal grooves and slots

12 products

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

21 products

Inside/Outside Diameter Gauges

Mount your variance indicator to measure the diameter of rims, grooves, and shallow holes

2 products

Countersink Gauges

Catch sizing errors in countersunk holes to keep fasteners from protruding and creating weak points

24 products