G4613 Drill Bushing Bushing Type Headless Press Fit P Inside Dia 0.0700 In Outside Dia 13/64 In Inside Dia Tolerance .0001-+.0004 In Outside Dia Tolerance +0.0012 - +0.0015 In Concentricity Tolerance .0003 In T.I.R. Max Overall Length 1/4 In Material 52100 Thru Hardened Finish Steel Drill Size # 50 Hardness RC 62-64