8 piece SabreCut Revolution kit including PowerLok 60mm, 100mm, 152mm and 305mm Magnetic Impact Bit Holder and 4 x 32mm Magnetic PZ2 Impact Bits. Impact Bit Holder designed for impact drivers and high-powered drill drivers. C ring holds the bit securely. Rare earth magnet, High torque & pull force. Heat treated custom engineered steel for maximum strength and durability. Black oxide finish for corrosion resistance. Impact torsion screwdriver bits. Tough heat-treated bits for improved durability and torsion zone for reduced breakage. Precision milled profile for optimum fit results in less cam out. Professional quality Impact Bit Holder and Impact Driver Bits.