BT50 Boring head threaded shank 1-1/2"-18
Material:40Cr
Hardness :HRC52-58
High precision & fine grinding thread adjustment
Back Thread Size: 1.1/2" x 18 T.P.I.
BT50 has thread size: M24 X 3 mm
Fits all heads with a threaded back
Taper shanks are mounted directly to the machine spindle