Cobalt Bronze Fractional Jobber Drill
Thunderbit® drills have a special heavy-duty core that guarantess increased strength and reduced breakage. Unique spiral flute design improves chip ejection and coolant flow to the point. M42 Cobalt steel for use in harder, more abrasive materials.
Features:
Premium Cobalt blend permits speeds and feeds up to 30% faster than HSS
Heavy-duty core for increased strength and reduced breakage
135° self-centering split point to prevent walking
Bronze surface treatment for added lubricity
Jobber length for most general applications
Unique spiral flute design improves chip ejection and coolant flow
Made in USA
Applications:
Drilling in hard alloy metals like stainless steel
Portable drilling in metal
Tech Tips:
Speed, feed, and lube are all critical to cutting tool performance
Prop65 Chemical Hazard:
Cobalt metal powder
