Vermont American 15799 Square Drive Bit Set, 1/4, 3/8 in Drive

Iso-Temp hardened, tough, fracture-resistant tips provide extra-long life. Drive case-hardened and drywall screws. Professionally designed for mechanics and tradesmen. Fast and easy system for driving Torx screws. Includes one each of 1/4 in square drives sizes TX10, TX15, TX20, TX25, TX27, TX30 and one each 3/8 in square drives sizes TX40, TX45 and TX50.