Standard Pack = 1 piece(s). Type = Dial Bore Gage ; Range = 6.5 To 10.0 Inch ; Accuracy = 0.0002 Inch ; Indication Stability = 0.00008 Inch ; Graduation = 0.0001 Inch ; Probe Depth = 10 Inch ; Number Of Anvil = 6 ; Feature = Carbide Tipped Contact Points For Durability, Optional Extension Rods Can Be Attached ;