PRO-SERIES PRO-SERIES R8 ER-40 DRAWBAR END COLLET CHUCK WITH SPANNER NUT (3901-5069)

Pro-Series by HHIP R8 ER-40 Collect Chuck with Drawbar End Premium hardened & all ground body for extended tool life. Thread of Drawbar End: R8- 7/16″ -20. Maximum RPM is 8,000. T.I.R. <= .0002″. Superior craftsmanship. Premium hardened & all ground body for extended tool life. Thread of Drawbar End: R8- 7/16″ -20. Maximum RPM is 8,000. T.I.R. <= .0002″. Superior craftsmanship.