Measuring Range : 0 - 25 mm, Vernier Graduations: 0.01 mm Ratchet handle for precise application of force. Crisp, clear, easy-to-read graduation. Chrome plated. Packed and supplied in plastic case. Not for very precise setting and operations Precautionary Note : Before the operation, clean measuring faces of the anvil and the spindle with a soft cloth or soft paper. Then bring them together carefully by turning the ratchet stop. If the line marked “0” on the thimble does not coincide with the reference line on the sleeve, adjust zero position in the following manners.