Milwaukee's 6-Point Sockets with FOUR FLAT sides feature an innovative and versatile design with 4 parallel flat sides, which deter rolling and are wrench-compatible. The socket sizes are stamped into the flats providing improved visibility. These sockets have optimized geometry to reduce bolt rounding and stripping. These two 10-piece sets are stored on socket rails for tool organization and are backed with our Lifetime Guarantee. Includes: (1) 3/8 in. SAE Low Profile 6-Point Sockets with FOUR FLAT Sides (10-Piece) and (1) 3/8 in. METRIC Low Profile 6-Point Sockets with FOUR FLAT Sides (10-Piece).