Auger Bit is for fast drilling-accuracy in wood.\t Heavy-duty self-feeding tip pulls the bit through completely, which allows for quick precision-drilling.\t Straight holes and high chip removal rate due to an optimised low-friction flute geometry with a solid centre.\t Optimised scoring spur and precision-ground main cutting edge produce accurate holes.\t Ideal for softwood and hardwood.\t Diameter mm: 10.0; 12.0; 14.0; 16.0; 18.0; 20.0 Working length mm: 170 Total length mm: 235