Alpha ThunderMax Square SQ2 x 100mm Power Bit Carded CSQ2100SMThunderMax Square SQ2 x 100mm Power Bit NEW GENERATION IMPACT DRIVER BITS EXTREME TORSION 50x Life Maximum strength for high impact & extreme torque loads Perfect for metal to metal fastening when extreme tightening down is required The torsion zone provides maximum strength for high impact & extreme torque loads Superior magnetism helps the bit grip the screw and prevent cam out