Loosen and clamping by hand, easy and fast operation saving clamping time
Gear structure on strong clamping force. no slippage while working
Ratchet seflocking drilling and tapping can be used
Easy to remove the drill chuck of the thrust nut and effectively maintain the precision of the inner conical hole
Used for bench drill, radial arm drilling machine, drilling and tapping machine, lathes, milling machine, magnetic drills; etc
