1 Pc. Techniks Brand New CAT 50 ER 32 x 4.00" 25K RMP @ G2.5 Balanced High Speed Collet Chuck (with slotted nut) for CNC Mill Techniks Collet Chuck Advantages Balanced to 25,000 RPM at G2.5 T.I.R. 0.0001" or better from taper to collet pocket Taper ground to AT3 accuracy or better Each holder lab certified for accuracy and balance Includes Power Coat Nut CAT 50, ER 32 Collet Chucks Part# Description l1 D Max. Shank Stop Screw Wrench 22311 CAT 50 x ER 32 - 4.00", slotted nut 4.00" 1.97" .788" 06089 04616 Other Available CAT 50 ER 32 Collet Chucks