G8678 Drill Bushing Bushing Type Slip Fixed Renewable Combination SF Inside Dia 1-33/64 In Outside Dia 2-/14 In Inside Dia Tolerance .0003-+.0007 In Outside Dia Tolerance -0.0004 In Concentricity Tolerance .0005 In T.I.R. Max Overall Length 2 1/2 In Material 52100 Thru Hardened Finish Steel Drill Size 1-33/64 In Hardness RC 62-64