DeWalt DD4321B12 #21 Cobalt Screw Machine Drill Bits 12Pcs. Germany new Safety valve prevents gas flow

Safety valve prevents gas flow when tip is removed

PlumbSite™ vial for easy reading

For use with portable cutoff saws

Heat-treated steel screws with smoothly rolled or cut threads and square heads

Hole in flute for easy wire pulling through walls

DeWalt DD4321B12 #21 Cobalt Screw Machine Drill Bits 12Pcs. Germany new Safety valve prevents gas flowDeWalt DD4321B12 #21 Cobalt Screw Machine Drill Bits 12Pcs. Germany Patented web taper is 2X larger than the competition for increased strength, rigidity and breakage resistance Optimized 135 degree split point gives exceptional service life and also allows the bit to start on contact Heavy duty flute design produces maximum durability Increased cobalt content provides exceptional wear resistance and longer life If you have a question about one of our