Accusize Industrial Tools R8 Shank Er40 Collet Chuck, 7/16'' -20 Drawbar End, Max T.I.R. 0.0002'' O.D to I.D. 0223-0240 - Accusize Co., Ltd.

• UPC   663566021577
• Made of high grade tool steel, Max RPM: 8000rpm. Shank: R8. ER Collet Style: ER40. Gage Length: 2.48". Collet Nut Diameter: 1.97". Drawbar End Thread: 7/16"-20 Hardened and precision ground. Max TIR 0.0002" O.D to I.D This is an ultra-precision workholding tool. When doing the inspection to ensure that each part is wiped especially clean, and the installation must be in place, otherwise it has a great impact on the accuracy When testing, whether the user's machine tool spindle has errors on the accuracy also has a great impact. So you need to ensure that the accuracy of the spindle of the user's test machine must be high. In addition, please make sure that the accuracy of the ER collet must be high, many ER collets are marked as 0.0005", many of them cannot reach it. If the accuracy of the collet in the hands of the customer is low, the accuracy of our toolholder is no longer high enough to detect the accuracy. R8 taper shank ER collet chucks are typically used on manual milling machines. The R8 taper end fits into a machine spindle and the ER collet nut is compatible with ER collet. The ER32 nut is compatible with the ER32 style collet and the ER40 nut works with the ER40 style collet. ER collets are used to hold all the machine tools with a round shank. These R8 shank ER collet chucks deliver a quality significantly above average on market. The total indicator runout (TIR) is less than 0.0002". The MAX RPM on the manual milling machines is 8,000. The manufacturer of the collet chucks inspects and produces them in a highly sophisticated lab and factory. You can hardly expect the collet chucks from the other MFG to be of the same quality.