Integrated design, taper shank and drill chuck are integrated,compact structure, eliminating accumulated tolerance,high precision
Loosen and clamp by hand, easy and fast operating, saving clamping time
Ratchet self-locking, drilling and tapping can be used
Gear structure, strong clamping force, no slippage while working
Used for bench drill, radial arm drilling machine, drilling and tapping machine, lathes, milling machine, magnetic drills;etc
