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.
