Milwaukee® 10-in-1 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. Milwaukee® 10-in-1 multi-bit drivers are designed for the jobsite. Milwaukee® 10-in-1 multi-bit drivers are designed for the jobsite and include Milwaukee® limited lifetime warranty.