BT30 ER20-70L CNC Milling Chuck Holder (Black)

Entire through-hole, conducive to water and seismic
Material: Carbide steel
Spindle Interface: BT30
Designed with Collet Size: ER 20
Clamping diameter range: 1-13mm
Locking nut inner diameter: 23.5mm
Chuck Holder must be placed collet nut first, and then enclose into the tool, and then locking into body
Hardened & Precision Ground
Protrusion: 70mm
Weight: 630g
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