Shars Outside Micrometer Set - 0.00 to 3.00" - High Quality Set (See Extended Information) perfect for any type service/ repair facility and economically priced for weekend hobbyist. Set of 3 micrometers in a wooden case. Lightweight metal frames with micro lapped carbide measuring tips. Reads in .0001 graduation. Includes 1.00" and 2.00" calibration standards.