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The slotted screwdriver bits are made of S2 alloy steel, heat treatment, high hardness,not easy to wear
Magnetic bits can be firmly fixed on screwdrivers and keep screws stuck to them, improve your work efficiency
1/4 inch (6.35mm) hex shank,fit for electric screwdrivers, hand screwdrivers, electric drills
4 inch (100mm) long
One set Includes the most popular size:3MM 4MM 5MM 6MM