G8494 Drill Bushing Bushing Type Headless Press Fit P Inside Dia 1-31/64 In Outside Dia 2-/14 In Inside Dia Tolerance .0002-+.0006 In Outside Dia Tolerance +0.0021-- +0.0025 In Concentricity Tolerance .0005 In T.I.R. Max Overall Length 2 1/2 In Material 52100 Thru Hardened Finish Steel Drill Size 1-31/64 In Hardness RC 62-64