Brand Drillco Product Series 500A Category Heavy Duty Jobber Length Drills (NAS Type J) Size Fractional Material Cobalt Material Type M42 Premium High Speed Steel with 8% Cobalt Finish/Coating Bronze Shank Straight Point 135º Split Point Description This Heavy Duty Cobalt Jobber Length Drill has been constructed to meet NAS Type J Aircraft Standards, making it ideal for drilling hard, tough materials such as stainless steel, titanium, high temperature, and high strength alloys. The cobalt construction enables it to cut harder materials than HSS drills, while its bronze surface coating provides increased lubricity, enabling speeds up to 30% faster. Origin USA
