The MILWAUKEE 27-in-1 Security Multi-Bit Screwdriver is the most versatile multi-bit screwdriver. This tamper proof multi-bit driver features easy-access in-handle storage, which keeps bits organized and allows you to quickly change bit sizes and types. The removable bit holder has a 1/4 hex shank, making it power tool ready for maximum jobsite versatility. The chrome-plated bits provide rust protection and reduce wear from elements on the jobsite. The Milwaukee 27-in-1 Security Multi-Bit Screwdriver includes Milwaukees Limited Lifetime Warranty.