Features:Heavy duty webbed constructionManufactured from heat-resistant premium cobalt high speed steelCobalt drills maintain cutting ability at high temperature and are extremely resistantStraight Shank135° Split PointType "J"Gold Oxide Finish / M42 Cobalt HSSApplication:High tensile materials such as high-strength alloy steels, stainless steel, titanium, manganese steel, armor plate & inconel