Steel Bore Gauges | McMaster-Carr

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1,842 Products

Bore Gauges

Dial Bore Gauges

Mitutoyo Dial Bore Gauges

Measure a hole’s inside diameter and detect out-of-roundness problems

9 products

Mitutoyo Dial Bore Gauge Sets

Include gauge bodies and anvils to measure a variety of hole diameters and depths

2 products

Economy Dial Bore Gauges

Measure a hole’s inside diameter and detect out-of-roundness problems

3 products

Mitutoyo Dial Bore Gauges with Micrometer Head

The built-in micrometer head removes the need for extra tools to set a baseline diameter

3 products

Starrett Small-Bore Dial Gauges

Measure small slots and holes for precision manufacturing and electronics

1 product

Starrett Dial Bore Gauges

Measure a hole’s inside diameter and detect out-of-roundness problems

3 products

Mitutoyo Flat-Bottom Dial Bore Gauges

Check roundness, taper, and diameter near the bottom of bores

3 products

Starrett Dial Bore Gauge Sets

Include gauges and anvils to measure a variety of hole diameters and depths

2 products

Mitutoyo Pocket Dial Bore Gauges

A short stem easily maneuvers in shallow holes and fits in your pocket

3 products

Bore Gauges

Mitutoyo Telescoping Bore Gauge Sets

Check a variety of hole diameters with spring-loaded contacts

4 products

Economy Small-Bore Gauge Sets

Check a variety of small holes, grooves, and recesses with spring-loaded contacts

1 product

Starrett Telescoping Bore Gauge Sets

Check a variety of hole diameters with spring-loaded contacts

2 products

Economy Telescoping Bore Gauge Sets

Check a variety of hole diameters with spring-loaded contacts

4 products

Mitutoyo Telescoping Bore Gauges

Spring-loaded contacts push against bore walls for general diameter checks

5 products

Starrett Telescoping Bore Gauges

Spring-loaded contacts push against bore walls for general diameter checks

6 products

Starrett Small-Bore Gauges

Measure small slots and holes for precision manufacturing and electronics

8 products

Starrett Small-Bore Gauge Sets

Check a variety of small holes, grooves, and recesses with spring-loaded contacts

2 products

Economy Telescoping Bore Gauges

Spring-loaded contacts push against bore walls for general diameter checks

6 products

Electronic Bore Gauges

Mitutoyo Electronic Bore Gauge Sets

Measure a variety of bore diameters without comparing them against a set measurement

8 products

Electronic Pistol-Grip Bore Gauge Sets

Measure a variety of bore diameters one-handed with the pull of a trigger

11 products

Electronic Bore Gauges

Measure bore diameter directly without comparing it against a set measurement

4 products

Mitutoyo Electronic Bore Gauges

Measure bore diameter directly without comparing it against a set measurement

9 products

Starrett Electronic Pistol-Grip Bore Gauge Sets

Measure a variety of bore diameters one-handed with the pull of a trigger

3 products

Electronic Small-Bore Gauge Sets

Test a variety of tight slots and holes in precision parts, such as electronics

9 products

Ball Bore Gauge Sets

Keep a variety of sizes on hand to check bore sizes or use as go/no-go gauges

2 products

Other Products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Bore Gauge Calibrators

Set and check the accuracy of two-point bore gauges

1 product

Inside Hole Calipers

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

11 products

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

1,022 products

Inside Hole Micrometer Spacing Collars

Replace the collar on your micrometer to connect extension rods

1 product

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

589 products

Inside/Outside Diameter Gauges

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

2 products

Bore Gauge Heads

Swap the head on your Mitutoyo electronic bore gauge for one with a different measuring range

4 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

27 products

Chamfer Gauges

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

16 products

Radius Gauges

Check convex and concave radii of tools, patterns, and dies

5 products

Countersink Gauges

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

19 products

Height Gauges

Measure an object's height and mark workpieces for machining

11 products