3/8" Dr Wobble Drive Impact Extension, 3" Sunex impact sockets feature a radius corner hex design, which drives the side of the hex, not the corner. Semi deep impact sockets are designed to provide added reach over standard sockets, yet fit in tight spaces where deep sockets are too long. The nose-down design extends the taper as far as possible, for improved access over straight wall designs. Lifetime Warranty. Includes Mid-Depth: 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 3503W Yes - NICKEL (METALLIC)