【Alloy Steel Material】: The screwdriver bit sets is made of S2 alloy steel, which is sturdy, waterproof and corrosion resistant, not easy to break and rust, which can be used for a long time. 【Non-Slip Design】: This surface of these 1/4 quick connect screw driver bits is covered with a blue plastic material, has a non-slip function, which ensures the screwdriver bit locks the screw accurately, no slippage when working. 【Saving Time】: These magnetic screwdriver bits can be firmly fixed on screwdrivers, which can hold mini screws to avoid loss, no only can facilitate your work, but save your time and effort. 【Widely Application】: Our screw bit sets featured with 1/4 inch hex shank, ideal for electric screwdrivers, hand screwdrivers, electric drills, air drills etc, which is a good accessory for home appliance repair. 【Service Guarantee】: We provide 24-hour after-sales service, if you have any questions about the electric screw driver bit, please feel free to contact us, we will try our best to solve your problem., Manufacturer: Uadme