• Designed for dial, vernier, and digital calipers to measure centerline distance.

• Sold in pairs, these gages quickly adapt to most calipers.

• Centerline measurements read in exact figures; no adding or subtracting is required.

• The 60 degree conical probe fits snugly into holes. Takes guesswork away from center distance measurements or to edge from a hole.

• Constructed of high quality alloy steel hardened  to 50 RC, black oxide finished.

• Outside diameter and  cone ground for accuracy.

• Each probe has two small holding nuts and is supplied with a hex wrench.