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Airframe and Assembly

We are a leading supplier of tooling to the airframe and assembly industry. Our assortment sets the highest standards expected by our customers, which include some of the world’s leading aircraft manufacturers.  

Our company has more than 50 years’ experience supplying the aerospace industry, through our product brands, Dormer and Precision Twist Drill.  We specialize in High-Speed Steel (HSS), Cobalt and Carbide rotary tools. All are manufactured from our production facilities in the USA and Brazil, meeting the necessary National Aerospace Standards (NAS) for quality and security.  

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This covers our range of carbide tipped rivet shavers, threaded shank and quick-change adapter drills, core drills, double-margin pilot drills, nutplate drills and special application drills and reamers. In addition, we manufacture many made to order custom tools for various application needs, while offering technical advice and a pro-active customer service.   

Our airframe and assembly assortment includes threaded shank drills, suitable for machining general to medium duty, low tensile strength materials in confined areas. Also, aircraft extension drills, manufactured to provide long life and high levels of productivity. This assortment includes a highly efficient flute design and a 135° NAS split point, which reduces thrust forces and improves positional accuracy when hand drilling.   


Additional items feature our countersink drills for use in Nutplate drill motors and tapered reamers for hand drilling (through bushes) or with controlled speed/feed drill motors. Dagger drills - designed to produce delamination free holes; double margin step drills to machine close tolerance holes; piloted countersinks for use on pre-drilled holes in aluminium, graphite and fiberglass; as well as carbide routers to machine the edges of composite panels made from Carbon Fibre Reinforced Polymer (CFRP), fiberglass and Kevlar.