The Rotabroach Raptor Cutters have a unique and exclusive geometry. They are designed to ensure that they will last longer, cut faster and give a better and more accurate finished hole than any other annular cutter. The cutters are manufactured from high-speed steel (HSS) with the addition of aluminium (M2AL) and heat-treated to a high temperature to ensure excellent hardness. The RAPK2000 Rotabroach Raptor Cutter kit contains 5 x Rotabroach Cutters 14, 16, 18, 20 and 22mm. 2 x Pins.