Lathe Collet Chuck R8 Arbor ER20 7/16" Holder Straight CNC Milling 40Cr'

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 (5-5/8")
Shank diameter : 24mm (15/16")
Collet chuck Model : ER20 (Cap was Hexagonal type)
Maximum clamping :10mm (25/64")
Run-Out Tolerance :0.01mm (0.0005")

Features:
Straight shank type extended handle, the handle body was longer, applicable to deep hole processing, resolve to extend the depth of processing needs.
Clamping from 1mm-10mm.
The nut can direct rotation tighten, high rigidity and strong clamping force.

Package Included:
1pc x Lathe Collet Chuck R8 Arbor ER20 7/16" Holder Straight CNC Milling 40Cr
1pc x Plastic storage box.