NORSKE™ SPAX® T50 IMPACT TORSION BITS are manufactured for use with SPAX® T50 POWERLAGS® WASHER HEAD CONSTRUCTION SCREWS. CNC milled magnetic tips provides supreme bit fit while virtually eliminating cam out and reducing wobble. The optimized TORSION ZONE flexes under load to take pressure off of the bit tip and reduce bit fracture resulting in less breakage. Proprietary tool steel and heat treatment process provides maximum strength and durability to handle a new generation of higher torque impact.