Matco Tools 1/4″ DRIVE 7 PIECE RECESSED TORX® SOCKET SET. Features And Benefits Features «austempering» for improved product performance and a longer service life Also features «surface peening» for greater durability Black oxide finish Includes sizes: 1/4″ Drive – E4, E5, E6, E7, E8, E10, E12 Intended for hand use only, do not use with impact wrenches or other power equipment SPECIFICATIONS Measurement Scale (Metric/SAE/Torx) Torx Number of Points Torx Drive Size 1/4″ Socket Length Type Standard Magnetic no