FEATURES:
Made of alloy forged steel for long, durable service life.
Hardened to RC 52-56 and ground to ensure maximum accuracy.
Shell Mill Pilot T.I.R. < .0002".
Holders have four mounting holes with 5/8"-11 thread on a 4" bolt circle to hold 8" or larger face milling cutters.
Produced according to AT3 specifications.
Adapter Style: Draw Bar
Arbor Diameter: 4-7/8"
Draw Bar Thread: 1"-8
Pilot Diameter: 2"
Projection: 4"
Shank Type: CAT50