<p>Drill Bushing, Head Press Fit, Inside Dia. 0.191 In., Outside Dia. 5/16 In., Inside Dia. Tolerance +.0001- +.0004 In., Outside Dia. Tolerance +0.0016 - +0.0013 In., Concentricity Tolerance .0003 In. T.I.R. Max, Overall Length 1-3/8 In., Material 52100 Thru Hardened, Finish STEEL, Drill Size #11, Hardness RC 62-64</p> <p><br /><b>Features</b></p> <ul> <li>Finish: Steel</li> <li>Inside Dia.: 0.191&quot;</li> <li>Item: Drill Bushing</li> <li>Material: 52100 Thru Hardened</li> <li>Outside Dia.: 5/16&quot;</li> <li>Drill Size: #11</li> <li>Hardness: Rc 62-64</li> <li>Overall Length: 1-3/8&quot;</li> <li>Bushing Type: Head Press Fit</li> <li>Outside Dia. Tolerance: +0.0016 - +0.0013&quot;</li> <li>Inside Dia. Tolerance: +.0001- +.0004&quot;</li> <li>Concentricity Tolerance: .0003&quot; T.I.R. Max</li> </ul> <p></p>