This caliper come with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It has carbide-tipped jaws for greater wear resistance and longer life when measuring abrasive or very hard materials. Built-in backlash control stabilizes the needle for accurate readings.

Depth base attachment (sold separately) stabilizes the caliper when taking depth measurements.

Attach to Starrett electronic and dial calipers to stabilize them when taking depth measurements.

Clamp onto electronic, dial, and vernier calipers to stabilize them when taking depth measurements.

Install these gauges onto the jaws of electronic, dial, and vernier calipers to measure the center-to-center distance between two holes. A 60° conical shape allows the gauges to fit snugly into holes.

Expand electronic, dial, and vernier calipers to measure larger items. Extenders have two pins that project 1/2" when installed and act as jaws for the extension. 1 1/2" extended projection pins are sold separately.

Use optional center-to-center gauge pins to determine the center-to-center distance between holes. The pins taper to a sharp point.

Attach to electronic, dial, and vernier calipers for the added versatility of measuring slots, inside pockets, shoulders, and holes.

Set includes a dial caliper, a micrometer, a ruler, and a case. The micrometer has a ratchet thimble with a constant-force mechanism, which stops the spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble will continue turning with a clicking sound. A speeder knob reduces the time it takes to open and close the micrometer.

This set comes with calibration certificates traceable to NIST that state each tool has passed a test for accuracy. It includes a dial caliper, a micrometer, a ruler, and a case. The micrometer has a ratchet thimble with a constant-force mechanism, which stops the spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble will continue turning with a clicking sound. A speeder knob reduces the time it takes to open and close the micrometer.