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Forged and hardened chrome vanadium steel
Corrosion-resistant sandblasted finish
Universal 1/4-inch hex shanks fit any power drill, driver, or screwgun
12-piece SAE and Metric nut driver bits: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16-inch; 5.5(7/32-inch), 6, 7, 8, 10, 12mm
3-piece Socket Adapters: 1/4-inch hex drive tools for 1/4, 3/8 and 1/2-inch square drive sockets
KAIFNT K404 Quick-Change Power Nut Driver Bit Set with Socket Adapters, 15-Piece The set is a must-have addition to any tool box. Featuring a full range of sizes, this set is ready for use with any power driver or screwgun, or turn the high-torque power drill into a high-speed power nut driver. Constructed from forged and hardened chrome vanadium steel with a corrosion-resistant sandblasted finish, this set is heavy-duty, built to last. Set Includes:• 6-piece power nut driver bits: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16-inch• 6-piece power nut driver bits: 5.5(7/32-inch), 6, 7, 8, 10, 12mm• 3-piece socket adapters:1/4-inch hex drive to 1/4-inch square drive socket adapter1/4-inch hex drive to 3/8-inch square drive socket adapter1/4-inch hex drive to 1/2-inch square drive socket adapter