Milwaukee SHOCKWAVE™ Impact Duty™ 2-7/8" Locking Bit Holder is engineered to be the strongest and most durable bit holder available. Its auto-locking design securely fits all inserts and 1/4-inch hex bits, ensuring reliable performance. The small-profile release collar makes it easy to change bit tips quickly and with just one hand. Featuring dual magnets, this bit holder maximizes holding power to prevent drops and keeps fasteners firmly in place. The bits are enhanced with Shockzones that absorb three times more torque, reducing breakage and providing thirty times longer life, making it an essential tool for demanding applications. Model Number: 48-32-4531