Features 1、- Those Slotted Tip Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware 2、- Magnetic bits can be firmly fixed on screwdrivers 3、- 6 sizes a set at an affordable price can meet your requirements 4、Those bits are magnetic that can be firmly fixed on screwdrivers, fitting for electric screwdrivers, hand screwdrivers,electric drills, air drills and so forth 5、Type of shank: 6.35mm / 0.25 inch hex Specification Descriptions: - Those Slotted Tip Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware - Magnetic bits can be firmly fixed on screwdrivers - 6 sizes a set at an affordable price can meet your requirements Specifications: Materials: S2 Alloy Steel Type of shank: 6.35mm / 0.25 inch hex Size: 2.0mm/2.5mm/3mm/4mm/5mm/6mm Total Length: 50mm(2") Features: Those bits are magnetic that can be firmly fixed on screwdrivers, fitting for electric screwdrivers, hand screwdrivers,electric drills, air drills and so forth Notes: Please allow a bit manual measuring errors Package included: 6 x 50mm Slotted Screwdriver Bit Package List