High Quality Material: The nut setter bits are made of chrome vanadium steel, with high hardness and high torque, durable.
Hex Shank: The socket bits use a universal 1/4" hex shank for quick-change chucks, high efficiency for saving your time.
Strong Magnet: With powerful magnetic, the socket drill bits help you hold onto bolts that hard to reach, also can hold bolts in place.
Widely Application: The power nut drill bit fits for electric drill, power drill, screwdriver, impact drill, cordless drivers and 3D printer, etc.
Service Guarantee: LDEXIN guarantees high quality and good service. If you are not satisfied, we will offer 30-days return service. No questions asked. Because we want you to be happy!