Manufacturer Part Number: 17-865-7|Type|Spare Part KitFor Use With|Dial Bore Gages; Electronic Bore GagesMinimum Measurement|Maximum Measurement|Gage Depth|Overall Length|Material|Number Of Pieces|5Includes|#10 Clamp & Clamp Screw; #3 Anvils (2-6"); #4 Anvils (1.4 - 2"); #5 Spacers; #6 ExtensionUNSPSC Code|41111600