FEATURES Includes ratchet stop, lock nut 0.001mm Graduation 0 to 25mm Range SPECIFICATIONS Micrometer Type: Mechanical Micrometer Head Range (mm): 0-25mm Graduations (mm): 0.001mm Spindle Material: Carbide Lock Nut Type: Ring Type Knurled Spindle Type: Flat Thimble Type: Ratchet Accuracy (mm): +/-.00075mm