Use: For drilling tear-free, dimensionally stable blind holes, for edge drilling as well as for oblique holes in soft and hard woods. By optimising the cutting edges, the Black Shark is even faster, more aggressive and sharper than any other Forstner drill bits worldwide. Fast and precise drilling with little effort. Significantly reduced friction. At least 25 percent higher speed for faster and effortless drilling. Shaft with three surfaces prevents the drill bit from spinning in the drill chuck forging guarantees the longest possible service life. Design: DIN 7483G, with centring point, peripheral cutting, 2 cutting edges and offset cylindrical shaft, in premium quality.