Runout Tolerance: 0.015mm for size smaller 3.0mm; 0.008mm for size 3.0mm & larger. Fit shank size: 1.0-13mm.
Made from alloy spring steel and hardened to HRC 44-48. All fractional size is true imperial size, not a metric conversion size. All collets are checked its runout individually on 4 contact points by a high tolerance bench marked testing rod. On size 3mm and larger the. Under size 3.0mm the runout is 0.00059.Each size of ER20 collet has collapsing range of. 039 (1 mm); the size of the collet is the largest size it can hold and able to hold anything smaller within the collapsing range. Running True at High Speed turning.
Fit all R8, morse tapper, CAT, BT, CNC, ER20, chuck or holder. Founded in 1978, Shars Tool Company has been serving the industrial community and machine shops in the USA for over 30 years. We carry high quality collets, with certificate in each set. If you need to speak to a sales person feel free to call.We are open Monday through friday 8:30 to 5:00 est. The item "CNC ER25 Metric Collet Set 15 Pcs 2 16mm DIN 6499/B. 0003 With Certificate" is in sale since Monday, May 6, 2019. The seller is "discount_machine" and is located in Saint Charles, Illinois. This item can be shipped worldwide.