FEATURES:
Made of alloy forged steel for long, durable service life.
Hardened to RC 56-60 and ground to ensure maximum accuracy.
Taper seat T.I.R. < .0004".
Produced according to AT3 specifications.
Adapter Style: Draw Bar
Draw Bar Thread: 1"-8
Inside Taper: 2MT
Outside Taper: 50 NST