Maximum Durability 13-Piece Metric Speed Bit Master Set Traxxas premium tool kits are manufactured from exceptionally high quality materials to provide years of pro-level service. The thoughtfully engineered grip features an overmolded rubber design for more power and excellent comfort. The precision-ground, hardened-steel hex tips fit just right, to prevent wear, rounding, and screw damage. Designed specifically for Traxxas models, these speed bit sets come in a tough, compact pouch making them ideal to take along for service in the field.