R8 Er20 7/16 Collet Chuck Holder Cnc Milling Lathe R8 Arbor

Description: R8 ER20 7/16 Collet Chuck Holder CNC Milling Lathe R8 Arbor Specification: Model R8 ER20 Material 40cr (chrome molybdenum alloy steel) Drawbar Thread 7/16" Overall Length 143mm (5.63") Shank diameter 24mm (0.94") Collet chuck Model ER20 (Cap was Hexagonal type) Maximum clamping 10mm ( 0.39") Run-Out Tolerance 0.01mm (0.0005") Features: R8 shank Holding all ER16 collets. Clamping from 1mm-10mm. Straight shank type extended handle, the handle body was longer, applicable to deep hole processing, resolve to extend the depth of processing needs. The nut can direct rotation tighten, high rigidity and strong clamping force. Package Included: 1x Straight Collet Chuck Holder More Details: