Product details:

The Irwin Impact Screwdriver Bits are specifically designed for use in high torque impact drivers. They are manufactured from heavy duty, high grade steel and have a 3 times increased life compared to standard screwdriver bits. Their precision tip geometry delivers superior fitment, reducing stripping and cam out. The bits are Power Groove designed for compatibility with IRWIN Impact Performance Series magnetic screw hold attachment. This set contains the following 7 x Phillips 25mm bits PH1 x 2, PH2 x 3 and PH3 x 2. 7 x Pozi 25mm bits PZ1 x 2, PZ2 x 3 and PZ3 x 2. 7 x Torx 25mm bits T20 x 3, TX25 x 2 and T30 x 2. 5 x Phillips 50mm bits PH2. 5 x Pozi 50mm bits PZ2. 1 x 3in bit holder. Supplied in a moulded ABS resin case.