Bison 1" Straight Shank ER-20 Collet Chuck + 10 Collets
European Quality, Enduring Value.
* Produced according to AT3# specifications.
* Made of alloy forged steel for long durable life.
* Hardened to RC 52-56 and ground to ensure maximum accuracy.
* End Mill Socket T.I.R. 0.0002"
