The Milwaukee 4932472057 Impact Duty Screwdriver & Drill Bit Set with SHOCK ZONE which reduces stress at the tip resulting in less tip breakages The Milwaukee 4932472057 Screwdriver and Bit Set is designed for use with Impact Drivers. With laser hardened WEAR GUARD TIPS for improved wear resistance and protection of the fit over the life of the bit. The SHOCKWAVE IMPACT DUTY accessory line is not only ideal for heavy-duty impact applications but also delivers a full system solution for all the user\'s drilling and fastening needs. Laser hardened WEAR GUARD TIP for improved wear resistance and protection of the fit over the life of the bit. Features: The combination of the SHOCK ZONE design and special heat treatment absorbs impacts and allows the bit to flex with spring-like action Custom engineered steel - Milwaukee custom metal formula makes the SHOCKWAVE bits more resistant to shock from impacting SHOCK ZONE Geometry - designed to flex SHOCK ZONE reduces stress at the tip resulting in less tip breakages Contains: 1 x SHOCKWAVE magnetic bit holder 60 mm length SHOCKWAVE screwdriving bits:  (33 x 25 mm length) 2 x PH1 - 2 x PH2 - 1 x PH3 - 2 x PZ1 - 4 x PZ2 - 1 x PZ3 - 3 x TX10 - 3 x TX15 - 3 x TX20 - 3 x TX25 - 3 x TX30 - 1 x TX40, 1 x Hex 4mm - 1 x Hex 5mm - 1 x SL 0.6 x 4.5 - 1 x SL 0.8 x 5.5 - 1 x SL 1.2 x 6.5.  (8 x 50 mm length) 1 x PH1 - 1 x PH2 - 1 x PZ2 - 1 x TX10 - 1 x TX15 - 1 x TX20 - 1 x TX25 - 1 x TX30  (3 x 90 mm length) 1 x PZ2 - 1 x TX20 - 1 x TX25   4 x SHOCKWAVE ¼″ Hex drill bits: Ø 3 - 4 - 5 - 6mm