Super Primalloy® CONSTRUCTION - The same proven, heavy-duty construction as our standard cobalt drills in larger diameters.M42 COBALT ALLOY - 8% cobalt content provides superior performance compared to conventional M35 cobalt alloy tools.ENHANCED HEAT RESISTANCE - M42 cobalt alloy steel enhances heat resistance and extends the overall service life while cutting tough alloys and hard materials such as stainless steels, iron-based and titanium alloys.135° SPLIT POINT - Helps eliminate the need for center punching allows for easier penetration and increased life in high-tensile materials.INDUSTRIAL LENGTH - 6” overall length offers full depth drilling and reach.GOLD SURFACE TREATMENT - Cobalt-gold body provides excellent lubricity for increased drill life while preventing corrosion and rust.MADE IN THE U.S.A.