The most popular collect chucks for the time being,one chuck can be used for end mills, drills, reamers and taps. Thread of the spring collet chuck and internal taper are precise ground. Thread of clamping nut is harden and turned for achieving high clamping power. Left-hand-thread backup screw is supplied complimentary, sealed backup screw is optional.

BT Thick boring bar, suitable using in CNC synthetic processing machine for boring process.