This item is manufactured with for durable and use. Because of strong that the headband has, the bit can easily suck with the hole. The bit with fine workmanship not only obtains a smooth surface but also achieve high precision. The tool can be used in various situations. Feature - Brand: . - ColorSilver - Material: Alloy steel. - Size: About 10.00X0.80X0.80cm/3.93X0.31X0.31in. - The bit is made of alloy steel, which that the bit has strong durability. - Strong , can suck the screws easily when used it, very convenient for using. - Good workmanship, high precision, offering you wonderful using experience. - Those bits fit for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. - The ball head is an upgraded version of the hexagon head, which overcomes the blind angle problem. Package list: 5 x Screwdriver Bits