The B94_ drill series without through coolant is specifically designed to machine hardened and surface hardened materials, using flood coolant. With its 145 Deg. point angle, it is also perfectly suited as pilot drill for the B95_ drill series with through coolant and 140 Deg. point for deeper applications.
KMH Point Design with curved cutting edge with corner chamfer for maximum corner stability in hard materials. It avoids chipping on cutting edge thus pre-mature wear.
Special flute design with strong web to increase the strength of the drill in tough applications with short chips. B94_ series with 15 Deg. helix angle to maximize stability in applications above 54 HRC.
Grade KCH10 on B94_ series consists of a special fine grain carbide substrate with higher hardness. It carries a high temperature and shock resistance AlTiN coating for machining hardened material to increase tool life.
