ARES 70028 | SAE Impact Magnetic Nut Driver Set | 2 1/2-inch Impact Grade Nut Setter with Industrial Strength Magnet SET INCLUDES: 1/4-inch, 5/16-inch, 3/8-inch, 7/16-inch and 1/2-inch nut drivers with a high quality reusable storage rail. ITEM SPECIFICATIONS: These nut drivers are made of chrome vanadium and have a 1/4-inch hex shank that fits any standard drill chuck. They are 2.5 inches (65mm) long and have an extra strength magnet for superior bit retention. THE QUALITY YOU NEED: Whether you're working on racks or mounting panels or working on gears, these nut drivers come through every time and snap right into your impact driver. They are full length, impact grade and help you reach where your fingers cant, and you'll never have to worry about losing the magnet. RELIABLE | EFFECTIVE | EFFICIENT: Users trust ARES to be quality tools. You are backed by our Performance Assurance Limited Lifetime Warranty. If you have any issues with your ARES magnetic nut driver set, simply contact customer service for troubleshooting help, parts, replacement, or refund. ASPCA BUSINESS AMBASSADOR: We are proud to be part of the ASPCA Business Ambassador Program. If you have a pet, you realize they are more than a pet, they are part of the family. With your support, were proud to help this great organization. Includes: 5 pc. SAE magnetic impact nut drivers and 1 pc. storage rail 1/4-inch hex shank Sizes 1/4-inch, 5/16-inch, 3/8-inch, 7/16-inch and 1/2-inch 2.5 inches (65mm) long Constructed of chrome vanadium Extra strength magnet for superior bit retention Designed for use in impact drivers and wrenches Shank fits any standard drill chuck 1/4-inch 5/16-inch 3/8-inch 7/16-inch 1/2-inch