Specification Brand : Hardinge BulletPoint1 : Collet for holding workpieces in a lathe or other machine tool BulletPoint2 : Type 5C square smooth collet with a through-capacity of 45/64” or 19 mm BulletPoint3 : Overall length of 3.281” and a back bearing diameter of 1.250” BulletPoint4 : External right-hand 1.238” x 20 draw bar threads are heat treated for long life BulletPoint5 : Hardened and ground spring steel for accuracy and resistance to wear and breakage ItemName : Hardinge 5C Square Smooth Collet, 39/64" Hole Size ItemPackageDimensions_Height : 3.302 centimeters ItemPackageDimensions_Length : 10.16 centimeters ItemPackageDimensions_Width : 4.064 centimeters ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : workholding-collets Manufacturer : Hardinge Material : steel ModelNumber : RT650 NumberOfItems : 1 PartNumber : 10010039006093 ProductDescription : Ultra Precision ER Spring Collets for Collet Chuck/Holder, T.I.R. 0.0001" - 0.0002", Clamping range is 0.020" - 0.039", Made out of High Quality steel, 100% Quality control in the USA ProductSiteLaunchDate : 2011-11-14T08:00:01.000Z Size : 39/64" UnitCount : 1 UnspscCode : 27110000