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1" M-35, Type 14, Spira-Broach, HSS plus 6% Cobalt, Gold Finish Annular Cutter, Norseman Drill #16721
Spira-Broach Annular Cutters - These unique cutters reduce time and power requirements by cutting larger diameter holes at the periphery leaving solid slug in the center.
High tungsten content increases abrasion resistance resulting in a tough tool with long lasting durability with 6% cobalt added to increase heat resistance.
M35 - Increased hardness for tough jobs.