NAS 907J Metric Cobalt Jobber Length
Type 643-D Metric Cobalt Jobber 135° Split Point
— Cobalt drill bits are not made of pure cobalt, but rather a steel alloy 8 percent cobalt.
— Use on tough metals, free machining stainless steel, titanium alloys
and certain abrasive plastic.
— Cobalt drills require rigidly held positive feed drilling application.
— Proudly manufactured in the USA
with globally sourced material
PDF — Type 643-D Metric Cobalt Jobber Length