Welcome to my eBay store. I have owned and operated Barks Equipment & Supplies since 1984 after managing a large machine shop for 25 years. For the last 31 years I have bought and sold new and used machine shop equipment and supplies across the country. I have lots of good used items along with new inventory from brand names like Sioux, Sunnen, and Regis. I specialize in Sioux Tools Valve Grinders, Valve Refacers and Drivers and the Sunnen Tobin Arp PM Machines and Valve Refacers with new, reconditioned and used parts for repairing them. Manuals for machines are also available. Thank you for visiting and come back often!