Unibit Step Drill Bits for Aircraft Repair
Irwin Unibit Step Drills use a unique single flute design to drill perfectly round holes in thin materials quickly and with less effort than a standard bit. Unibits incorporate cutting steps of progressively larger diameter, making it possible to drill up to 13 different hole sizes with a single bit. Once the desired hole diameter is obtained, the hole is automatically deburred by the cutting edge of the next step.
Unibit step drills are ideal for enlarging existing holes or drilling multiple hole sizes in thin aluminum, sheet metal, plastics and other materials commonly found in aircraft maintenance and fabrication. Aircraft maintenance technicians use step drill bits when installing avionics, electrical components, interior hardware and access panels because they produce smooth, accurate holes with minimal burrs. Their self-deburring design helps reduce finishing time while providing consistent results, making Unibit step drills a valuable tool for corporate, commercial and general aviation maintenance, repair and production applications.