Airframe and assembly 2021
20Pages

AIRFRAME & ASSEMBLY

THREADED SHANK DRILLS AIRCRAFT EXTENSION DRILLS NUTPLATE DRILLS / COUNTERSINKS TAPERED DRILL REAMERS / DAGGER DRILLS PILOTED REAMERS / CORE DRILLS DOUBLE MARGIN PILOT DRILLS / STEP DRILL REAMERS PILOTED COUNTERSINKS RIVET SHAVERS CARBIDE ROUTERS STANDARD DRILLS SPECIALS CAPABILITIES

INTRODUCTION Dormer Pramet is 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. Following the acquisition of California based HP Wetmore Tool & Engineering in January 2019, we have significantly increased our expertise, capabilities and product offer for airframe and assembly. This covers our range of...

THREADED SHANK DRILLS CONFINED SPACE DRILLING Our assortment of threaded shank drills is available in three varieties, High Speed Steel, Cobalt and Carbide. These are for drilling general to medium duty, low tensile strength materials in confined areas. The Carbide range can be used for drilling composites. A split point geometry, manufactured to NAS specification, reduces thrust forces and improves positional accuracy when hand-drilling. HIGH SPEED STEEL Drilling general to medium duty, low tensile strength materials in confined areas Drilling hard, tough, high tensile strength materials...

AIRCRAFT EXTENSION DRILLS DIFFICULT TO REACH DRILLING Our aircraft extension drills are manufactured to provide long life and high levels of productivity. Available in High Speed Steel, Cobalt and Carbide, the assortment includes a heavy flute design. A 135° split point geometry, manufactured to NAS specification, reduces thrust forces and improves positional accuracy when hand-drilling. • NAS 907 Type “B” & Type “J”. • Offered in High Speed Steel (HSS) for general drilling applications. • A Cobalt option is suitable for drilling tough, high tensile strength materials, such as stainless...

NUTPLATE DRILLS / COUNTERSINKS DRILLING HOLES FOR NUTPLATES Our assortment of countersink drills is specifically for use in Nutplate drill motors. Used for drilling 100° countersunk holes for standard nutplates, the range is available in High Speed Steel, Cobalt and Solid Carbide. • The standard HPD nutplate countersink drill, made of M7 High Speed Steel, is used for drilling aluminium and mild steel. • The M42 Cobalt drill is for machining hard steel and titanium. • A Carbide version is available for drilling composites. • Available in a variety of sizes to suit most common nutplates. •...

TAPERED DRILL REAMERS CARBIDE TOOLS FOR COMPOSITE MATERIALS Also known as a “One Shot” drill, this assortment of tapered reamers can be used for hand–drilling (through bushes) or with controlled speed/feed drill motors. Originally developed for fiberglass, these drills are also excellent for CFRP (Carbon Fibre Reinforced Polymer) and graphite composites. Various shank and length options are available. DAGGER DRILLS CARBIDE TOOLS FOR COMPOSITE MATERIALS Used with hand-held and controlled feed/speed drill motors, our range of dagger drills are designed to reduce delamination and splintering....

PILOTED REAMERS DRILLING CLOSE TOLERANCE HOLES Our range of piloted reamers are precision ground for concentricity between the pilot and main diameter. Used for sizing close tolerance holes, the assortment is available in High Speed Steel, Cobalt and Carbide. Also, various shank configurations are available on request (1/4“ – 28 threaded shank). CORE DRILLS REWORKING PRE-DRILLED HOLES This assortment of core drills is designed primarily for enlarging previously drilled holes and for reworking of round holes. Our range is available with a precision ground pilot to maintain concentricity and...

DOUBLE MARGIN PILOT DRILLS DRILLING CLOSE TOLERANCE HOLES This range of NAS 937 double margin pilot drills is suitable for machining close tolerance holes. Each design has been precision ground with a pilot to maintain concentricity and accuracy. Available in High Speed Steel, Cobalt and Carbide, the drills are available in various shank configurations on request (plain, quick change or 1/4“ – 28 threaded shank). STRAIGHT SHANK DRILL QUICK CHANGE SHANK DRILL THREADED SHANK DRILL STEP DRILL REAMERS DRILLING CLOSE TOLERANCE HOLES Our step drill reamers are for drilling and reaming in one...

PILOTED COUNTERSINKS COUNTERSINK PRE-DRILLED HOLES This assortment of piloted countersinks can be used on pre-drilled holes in aluminium, graphite and fiberglass. The tools come with standard threaded shanks that fit conventional micro-stop countersink cages. • Manufactured with common pilot diameters. • 1/4“ – 28 threaded shank fits most micro-stop cages. • Made from premium grade carbide. • Available in two or three flutes. • The carbide base extends tool life. Micro-stop cages used with piloted countersinks helps to ensure a perpendicular approach and enables accurate chamfer depth and di

RIVET SHAVERS TRIMMING EXCESS MATERIAL Our rivet shavers are designed to machine excess material from the flush-head rivets. The tools have been precision ground with a carbide tip to improve surface finish and tool life. Available in standard two-flute or 14-flute designs. STANDARD TWO-FLUTE • Solid carbide blade. • A 1/4“ – 28 threaded shank to fit most rivet shaver air motors. • Body diameter available from 1/4" to 1" in most common increments. 14-FLUTE DESIGN • Centre cutting design to aid self-centring and eliminate cutter chatter, increasing operator control. • Solid carbide head. •...

CARBIDE ROUTERS TRIMMING COMPOSITE PANELS Our range of carbide routers are used to machine the edges of composite panels made from various materials, including Carbon Fibre Reinforced Polymer (CFRP), fiberglass and Kevlar. Designed to limit the amount of delamination and splintering of the upper and lower surfaces of the panel, the tools are manufactured from premium grade carbide. Suitable for applications in a variety of composite materials, including Carbon Fibre Reinforced Polymer (CFRP). Its special design prevents delamination on the surface. COMPRESSION ROUTER Recommended for...