20PCS Premium Hex Bit Set, Impact Allen Wrench Drill Bit Set (Metric&Sae), 1/4”
Drive Bit Shank Style Hex Shank. Drive System Hex. Bit Compatibilities drill, impact driver. Unit Count 1.0 Count. 【Torsion】Torsion zone to absorb torque peaks to avoid breakage. For impact driver and heavy screw driving.