This is a Traxxas 7-Piece Metric Hex Bit Master Set, intended for use with Traxxas models to help simplify building and maintenance. Traxxas premium tool kits are manufactured from exceptionally high quality materials to provide years of pro-level service. The thoughtfully engineered grip features an over-molded rubber design for more power and 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. The included rubber over-molded handle holds the bits securely with a powerful magnet for fast bit changes. Headed to the track? Don’t worry, the included heavy-duty tool pouch keeps everything secure for traveling. Features: Precision-ground, hardened steel metric hex drivers Rubber over-molded 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 1.5mm 2mm 2.5mm 3mm Ball end drivers 2mm 2.5mm 3mm