R8 to 33JT Drill Chuck Arbor Shank Taper JT33 Adapter Collet MIlling CNC R8 to JT33 drill chuck arbor Shank: R8 ; Taper: JT33 Made of precision ground, high grade tool steel ; Arbor will fit all drill chucks that with a 3JT bore and will fit on any machine tool with a R8 spindle Overall length: 5-1/4'' long Quantity: 1 ; Weight: 1 LB