This 0-3" micrometer set features carbide faces and clear 0.0001" graduations on a satin-chrome finish. The frames are forged steel. 1" and 2" standards are included, as well as adjusting wrenches. The micrometers have a ratchet stop for exact repetitive readings and a lock lever to lock the barrel. The micrometers come in a convienient fitted case. Includes: 0-1" precision micrometer 1-2" precision micrometer 2-3" precision micrometer 1" Precision ground calibration standard 2" Precision ground calibration standard Adjustment wrenches Heavy-duty fitted plastic case Features: Ratchet style micrometers for precise, repeatable and accurate readings Micrometers read to .0001 of an inch Carbide anvils Baked enamel frames Heat shields on both sides of frame Precision ground spindles Spindle lock for easier reading Satin chrome finish on barrels, thimbles and ratchet stops Clear, clean, crisp graduations on barrel and thimble scales Clean crisp knurls on thimbles and ratchet stops