3PCs BT40 ER16 MILLING COLLET CHUCK HOLDERS PROJ. 3.94" BALANCE 25,000RPM

Price is for 3 Pieces prime Quality collet holders! Suitable for ER16 collets. Made of alloy steel and hardened to HRC 60-62. Balanced to 25,000 RPM Tested T.I.R: 0.0001" Taper: BT40. Projection: 3.94" (100mm). Thread :M12 x 1.75P