Four Flute Auger Bit
These four flute auger bits are ideal for quickly and accurately drilling deep holes in thicker stock. The four flute design is superior compared to single fluted auger bits when fast cutting and immediate chip removal is required. They can be used in either drill presses or electric hand drills and are designed to be used on softwoods, hardwoods and composite materials. The precise cutting geometry, the four cutting spurs, the four chisel like main cutters and the four flutes ensure accurate, clean holes while minimizing tearout on entry and exit of the hole. The cutting spurs sit fractionally above the main cutters to ensure the bit enters the wood cleanly without tearing the wood fibres, the main cutter then follows to remove the material quickly to avoid the build-up of heat. The bits feature a threaded centre point which pulls the bit through the wood meaning minimal force is needed for the bit to work at full capacity. The four deep flutes allow rapid chip removal to prevent clogging when drilling deeper holes.
The auger bits are made from high carbon steel which has been hardened to ensure a long service life and give the bits impressive cutting properties when compared to traditional steel auger bits. The bits have been fully ground to give precise concentricity to ensure a highly accurate hole. The quick change ¼” hex shank is compatible with all ¼” hex shank quick change systems, it will ensure a secure hold that will not slip inside the chuck during use. These four flute auger bits are normally used at low speeds between 700 and 2000rpm to prevent the wood from scorching. The speed depends on size, with the larger diameter bits being used at lower speeds.
These bits are certified to ensure the dimensional accuracy of the hole and are available in 12mm to 20mm diameters in 2mm increments. The overall length of the bits is 165mm with a flute length of 75mm. ©
