Using automotive adjustable adapter tooling
provides for positive stop adjustment for drills,
reamers and taps. Easy to preset or to change tools.
Retention knob separate item.
Blank bar body is soft to allow for machining. The shank is 8620 and case hardened to Rockwell 52-56 .060 deep. After machining the bar end it can be selectively heat treated for your application.
Retention knob separate item