ITEM NAME:2X(10Pcs Wrench Drill Bit Set Magnetic Tips Quick Release Shank For Easy AtO8O4) 2X(10Pcs Wrench Drill Bit Set Magnetic Tips Quick Release Shank For Easy AtO8O4) 2X(It is made of S2 alloy steel material, overall heating treatment, hardness of ± HRC58, high torque and good toughness, sturdy and durable. The surface is processed by special black treatment, good-looking, and not easy to rust. Surface printed with specifications, easy to choose the one you need. The magnetic head of the bit is convenient to use and not slip. Wide application range, fit most electric screwdrivers, drills or other power tool. Colour:black Material:alloy steel Size:60mm Package Contents: 1 * Set of 10 screwdriver bits)