25 x PH2 Impact Duty 25mm Screwdriver Bits with SHOCK ZONE Geometry - designed to flex The Milwaukee 4932472037 PH2 Screwdriver Bits are designed for use with Impact Drivers. 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. Equipped with laser hardened WEAR GUARD TIPS for improved wear resistance and protection of the fit over the life of the bit. Features: SHOCK ZONE Geometry - designed to flex SHOCK ZONE reduces stress at the tip resulting in less tip breakages  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 Specification: Quantity: 25 pieces Type: PH2 Total length: 25mm