Standard Pack = 1 piece(s). Type = Outside Micrometer Set ; Range = 6 To 12 Inch ; Graduation = 0.0001 Inch ; Finish = Hammertone Blue Baked Enamel ; Diameter Of Measuring Face = 0.256 Inch ; Flatness = 0.0003 Inch ; Features = Quick, Easy Zero Adjustment On Sleeve, Positive Lever Locking Clamp, Spindle Thread Hardened, Ground And Lapped For Ultimate Accuracy, Anvil & Spindle Hardened And Precision Ground With Microlap Finish On Tips, Includes A Wrench And Case ;