Product Details: Milwaukee 9IN1 ratcheting multi-bit drivers feature 3-1/2 in. power groove bits for power tool compatibility and maximum jobsite versatility. The chrome plated bits provide marine-grade rust protection and reduce wear from the elements on the job. The all metal high torque ratchet allows for 2X faster driving without sacrificing control. Milwaukee 9IN1 multi-bit drivers are designed for the jobsite and include Milwaukee's Limited Lifetime Warranty.