823AZ 1 1/2"-8" INSIDE M

Features: Highly useful tools for internal linear measurements such as measuring cylinders, rings, setting calipers, comparing gages, and measuring parallel surfaces | The extension rods are made of steel tubing, light in weight, yet extremely rigid | By removing the hardened and ground anvil ends (end caps) of the micrometer head, the rods may be attached to either or both ends of the micrometer as preferred | Each rod may be individually adjusted for wear by the hardened and ground anvil at the end | Insulated rods with the exception of the 1/2" and 1" sizes | Each rod marked with length