product description
DeWalt DD4120B6 5/16" Cobalt Machine Drill Bits 6Pcs.Made in 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
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