Milwaukee SHOCKWAVE™ Impact Duty™ 6" Locking Bit Holder features an innovative auto-locking design compatible with all inserts and 1/4-inch hex bits, ensuring a secure fit every time. This bit holder includes a small-profile release collar that allows for quick and easy one-handed bit tip changes, enhancing user efficiency. Equipped with dual magnets, it maximizes holding power to the fastener, effectively preventing drops during use. The bits are engineered with Shockzones technology, which absorbs three times more torque to prevent breakage and delivers a lifespan 30 times longer than standard bits. This durable and reliable tool is designed to meet the demands of tough impact duty applications, making it an essential addition to any professional toolkit. Model Number: 48-32-4532