Diameter Gauges | McMaster-Carr

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System of Measurement

Material

Distance Measured

Gauge Size

Manufacturer

Shape

Length

Display Type

Width

Overall Length

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Measuring Increments

REACH

RoHS

Compliant with Exemptions

For Use With

Pipe Size

Color

Certificate Type

Accuracy Certificate Traceable to NIST

Calibration Certificate

Gauge Block Grade

Measures

Manufacturer Model Number

Maximum Diameter Measured

1 1/8"

26 mm

Minimum Diameter Measured

3/32"

4 mm

For Pipe Fitting Size

Jaw Material

1,512 Products

Measuring and Inspecting

Diameter Identifiers

Tighten the strap around rods, drill bits, and other small items to measure outer diameter

1 product

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

4 products

Go/No-Go Outside Diameter Gauges

Snap on rods and shafts to check if their outside diameters are within tolerance

16 products

Plug Gauges

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

56 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

129 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

210 products

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

223 products

Gauge Blocks

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

738 products

Inside Hole Calipers

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

12 products

Inside/Outside Diameter Gauges

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

2 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

11 products

Micrometer Speeder Knobs

Color code micrometers by calibration date, precision, or other criteria

4 products

Countersink Gauges

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

24 products

Height Gauges

Measure an object's height and mark workpieces for machining

3 products

Step Gauges

Check step height, gap width, and distance between slots to make sure machine and engine parts align

2 products

Chamfer Gauges

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

21 products

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

4 products