SHOCKWAVE Matrix Carbide 3 In. bit holder and two bit set has a new-to-world innovation that solves the frustration of driver bit tips wearing out prematurely. Matrix Carbide steel is a proprietary steel that contains evenly distributed carbide to provide extreme wear resistance and bit life. The impact driver bits combine our optimized Shockzone technology with our new proprietary Matrix Carbide Steel to give this driver bit the ability to absorb the peak torques of impacts while also providing extreme wear resistance. Additionally, SHOCKWAVE Matrix Carbide magnetic bit holders are engineered to provide up to 3X life to driver bits. This revolutionary advancement in impact driver bit technology is backed with a Lifetime Tip Warranty. Designed for use with impact drivers and drill drivers. Includes two 1 In. PH2 insert bits.