New R8 ER20 7/16 Collet Chuck Holder CNC Milling Lathe R8 Arbor excelsior mini lathe central machinery taig jet 1642 1220 vicmarc chuck wood chucks fox w1758

Description

R8 ER20 7/16 Collet Chuck Holder CNC Milling Lathe R8 Arbor Specification: ModelR8 ER20 Material40cr (chrome molybdenum alloy steel) Drawbar Thread7/16" Overall Length143mm (5.63") Shank diameter24mm (0.94") Collet chuck Model ER20 (Cap was Hexagonal type) Maximum clamping10mm ( 0.39") Run-Out Tolerance0.01mm (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