0.0001'' Graduation  4-5'' Metal Frame Outside Micrometer Solid Ratchet Stop Plastic Case Overall Dimension: 12 in L x 6-1/2 in W x 2 in H *Rough Estimation* Micrometer Weight: 1.35 Pounds *Rough Estimation* Ratchet Stop Allows Uniform Pressure Of Spindle To The Contact And Enhance Measurement Repeatability Level Lock And Locking Nut Are Easy To Operate Graduation: 0.0001 inch Plastic Case Included Qty: 1 Light Item