These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

The display, markings, and thumb wheel on these calipers are positioned for comfortable left-handed use.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

These calipers comes with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Carbide-tipped jaws provide greater wear resistance and longer life when measuring abrasive or very hard materials.

Protect sensitive electronics from damage while you take accurate measurements.

Take inside and outside measurements by moving the jaw along the ruler.

Jaws move only when the thumb lock is depressed.

Jaws move only when the thumb lock is depressed.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Versatile enough for general checks, these bore gauges have spring-loaded contacts on the end of their probe to expand inside holes.

Inspect a variety of hole sizes with the gauges in these sets. Each has spring-loaded contacts on the probe, which expand inside holes to measure diameter.

Position these gauges snugly within your bore to measure its diameter. Spring tension pushes the gauge’s two telescoping steel contacts against the walls of your bore.

Check a variety of hole, groove, and slot diameters. Each gauge in these sets has a different measuring range.

These calipers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Measure the inside diameter of holes and cylindrical bores, as well as identify out-of-roundness problems.

The dial on these gauges displays size deviations in real time. These gauges measure small slots and bores in precision parts, such as electronics, where even small size deviations can cause inefficiencies.

Check a hole’s diameter and detect out-of-roundness problems.

No need for other tools to set a baseline diameter—these bore gauges have a built-in micrometer head.

Check roundness, taper, and diameter near the bottom of bores—the flat bottom on these gauges positions the anvil against the base of the hole.

The jaws on these micrometers work like caliper jaws to precisely measure inner diameters.

Measure the inside diameter of cylinders and rings.

Reach into bores to measure the precise size and location of grooves.

Measure bore diameter directly. These gauges give you the actual diameter, unlike a dial bore gauge, which only shows the variation from a set measurement.

Check the diameter of holes with the pull of a trigger. These Starrett sets have everything you need for one-handed measurements—a pistol-grip gauge, heads for varying diameters, and setting rings.

Check the diameter of holes with the pull of a trigger. These sets have everything you need for one-handed measurements—a pistol-grip gauge, a head, setting rings, and a stand.