13-Piece Metric Speed Bit Master SetPrecision ground, hardened steel metric hex drivers Machined, hardened steel nut drivers Rubber overmolded handle for superior grip and comfort Precise fit magnetic insert holds the speed bit in the handle Standard 1 4 inch hex shank for use with power drill drivers Heavy duty pouch holds tools securely Custom embroidered Traxxas logo Clearly marked with laser etched sizes Includes Straight hex drivers 1. 5 mm, 2 mm, 2. 5 mm, 3 mm Ball end hex drivers