Drill America D/art series high-speed steel aircraft taper routers are designed for use in clearance cutting or routing, and are furnished with a right hand helix and right hand cut. Taper routers are used for cutting, trimming and routing around cowling, door sills and plexiglass, trimming on Wing terminals in bulkheads and ribs on fuselage. The advantages over taper pin Reamers and Drills are the ability to cut without drilling. Available in 0.0810-Inches small end diameter.