Covington Engineering

Covington Corporation supplies equipment and materials for lapidary work, rock tumbling and gem cutting. Its catalog includes Ameritool and C Brand machines such as grinders, sanders, saws, tumblers and sphere machines, along with diamond and silicon carbide wheels, polishing compounds, tumbling media, blades and drill bits for hobbyists and small shops.

Shoppers can browse and buy through the online store, which also carries replacement parts, books and accessories alongside the larger machines. Gift certificates are available, and free shipping specials are listed on the site. The business is based in Meridian, Idaho, with office hours on weekdays.