20/10PCS Magnetic Allen Wrench Drill Bit Long Impact Hex Head Screwdriver Bit Set 1/4 Inch Torx Hex-Shank Driver Bits Set

Material：S2 Alloy Steel
Item Length：50mm
Drive System：Internal Hex
Finish Type：Manganese Phosphate
About this item
impact hex head allen wrench drill bits. Torsion zone to absorb torque peaks to avoid breakage. For impact driver and heavy screw driving.
CNC machined tips, S2 alloy steel body, hardened core to increase bit strength and reduce fracture. Manganese Phosphate surface to prevent rust.
Strengthened magnetic impact bit helps you easy pick up screws. The magnetism doesn’t decay after multiple uses.
Widely used in home repairs, automobiles, and other screw driving applications.