Screwdriver Bit Set: the convenience of a unique 5 sided designs for secure and tamper proof screwdriving and: With 10 different sizes included in this set, you will have the right bit on hand Enjoy the convenience and reliability of craftsmanship Versatile Applications: From home repairs to automotive maintenance and woodworking projects, these screwdriver bit are versatile and can handle a wide ranges of tasks your productivity and get the job done efficiently Suitable for Various Users: Whether you are a repair worker, a enthusiasts, or a professional, this set is designed to meet your needs and Easy to Use: Crafted from alloy steel, these drill bit are built to withstand heavy use With a 1 / 4 inch shank and a length of 50mm / 2inch, they are for power drills and driver, Manufacturer: Yhplxyuus