Amana Tool's 4 facet jobber length fractional drills consist of 2 cutting edges with 2 facets per cutting edge. The facets consist of the lip relief and the lip clearance angle. Multi-faceted drill geometries translate into improved centering accuracy, thereby producing rounder, precise holes less likely for “bell mouthing.” Our premium grade carbide substrate insures increased tool life by a minimum factor of 10X’s over HSS coated bits, all while often eliminating the need for a prior center punch or spotting procedure. Also good for drill press.
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