The EXOPRO-WHR-Ni spiral flute series is one of OSG’s latest innovations for nickel-based alloy applications. The EXOPRO-WHR-Ni series features a new point flute design to improve cutting edge rigidity, which helps prevent chipping and enables it to excel even in blind holes. With the addition of OSG’s patented HR coating, wear resistance and tool life can be substantially prolonged versus the competition.