Description: High-quality materials: Our screw drill bits are made of high-quality carbon steel. It has appropriate hardness and twist, making the bit difficult to break and wear. Powerful: suitable for drill bits, screwdrivers, first-class batch transfers. The screwdriver head may obstruct the connection. This is ideal for replacing sleeves and seals, extending links. Powerful: suitable for drill bits, screwdrivers, first-class batch transfers. The screwdriver head may obstruct the connection. Ideal for replacing sleeves and seals, extends links. Powerful: suitable for drill bits,screwdriver, first class batch transfers. The screwdriver head may obstruct the connection. This is ideal for replacing sleeves and seals, extending links. Quick fixing: Our screw drill bits are perfectly fixed on the screws without fear of falling, installation is easier and more convenient, which greatly improves work efficiency. Customer Service: We serve buyers with all our heart. Please do not hesitate to contact us if you encounter any problems with your purchase. Specifications: Interface support: 1 / 4 " Material: carbon steel Size: 3.46 inches Color: silver Weight: approximately 50g Packaging includes: 1 x magnetic screw drill Note: 1. Due to lighting effect, monitor's brightness, contrast settings etc., there could be some slight differences in the color tone of the picture and the actual item. actual item. 2. Please allow 1 - 2mm difference due to manual measurement, thanks.