Drills: Viking 643-D Cobalt Metric Jobber Length Drill Bits

Viking 643-D Cobalt Metric Jobber Length Drill Bits Reviews

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Viking 643-D Cobalt Metric Jobber Length Drill Bits Detail

Type 643-D Metric Jobber Length Drill Bits
M42 cobalt steel for drilling hard, tough metals, high temp alloys, titanium & certain plastics
4.3mm dia. / 83mm, 3-1/4" o'all lg. / 54mm, 2-1/8" flute lg.
Proudly manufactured in the USA
In stock / Sold in packs of 10

Heavy duty 135 degree split point with gold finish for drilling hard tough metals, free machining stainless steel, high temperature alloys, titanium and certain plastics. High red hardness cobalt steel permits speeds 30% higher than regular high speed drill bits. Cobalt drill bits require rigidly held positive feed drilling equipment.