Klein Tools 85191HD Flip Socket Conduit Reamer Driver reams and smooths 1/2-inch (13mm), 3/4-inch (19mm), and 1-inch (25mm) conduit without requiring component removal. This tool features an improved leaf spring design that provides a secure grip, while the auto-lock mechanism securely connects to quick-connect handles, with a simple collar pull-back to release. The 3-in-1 flip socket functions as a magnetic bit holder, and the Cushion-Grip handle provides extra torque and comfort. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.