G8682 Drill Bushing Bushing Type Slip Fixed Renewable Combination Thin Wall SF Inside Dia 0.094 In Outside Dia 3/16 In Inside Dia Tolerance .0001-+.0004 In Outside Dia Tolerance -0.0005 - -0.0007 In Concentricity Tolerance .0005 In T.I.R. Max Overall Length 1/4 In Material 52100 Thru Hardened Finish Steel Drill Size # 42 Hardness RC 62-64