FEATURES:
Made of alloy forged steel for long, durable service life.
Hardened to RC 56-60 and ground to ensure maximum accuracy.
Shell end mill pilot T.I.R. < .0004".
Produced according to AT3 specifications.
Adapter Style: Draw Bar
Arbor Diameter: 1-1/4"
Draw Bar Thread: 1"-8
For Shell End Mills: 3 to 3-1/2"
Shank Type: 50 NST