With the Milwaukee 4932478621 hex key set, you can tackle fastening tasks quickly, precisely, and with total control. The ball end design lets you reach and turn hex screws smoothly at off-axis angles up to 30 degrees, making it ideal for confined spaces in machinery maintenance, automotive servicing, and bicycle repairs. This nine-piece set covers standard metric sizes from 1.5 to 10 mm. Clear size markings allow you to grab the right tool instantly without searching. The secure twist-and-lock holder keeps every key neatly in place and features a lanyard hole for Milwaukee safety lanyards, keeping you safe and organized when working at height.