R950 Hydra range carbide drill heads are interchangeable, so you only need to replace the head, for a very cost efficient, high performance drill. The heads come with coolant feed channels, which fit precisely onto the grooves in the bodies. Manufactured from premium carbide for high performance drilling and longer tool life, R950 drill heads have a special Ti-phon coating which improves performance when drilling harder materials and ensures a longer lasting tool. With a geometry designed for optimum performance when drilling steels, R950 Hydra drill heads have a 140 degree split point to reduce the push force needed and to help with self-centering. Please see H853, H855 and H858 Hydra bodies for use with these drill heads.