Unibroach (R) Cobalt Annular Cutters (7-Series), 2-1/4", 3", GE 7-1-372 GE

Diameter Up to 4. Drilling Depth Up to 3. Pilot pin included with each cutter. See Replacement Pilot Pins. Benefits. Unibroach(R) Cobalt Cutters are made with 5 cobalt to increase resistance to wear. Cobalt content increases hardness and wear resistance, extending cutter lifespan. Available with TiAIN coating upon request. Available for hole sizes up to 5 dia. 3 4 shank standard for cutters up to 3 dia.,. 1-1 4 shank for cutters over 3 dia. Pilot pin not included with 7-series annular cutters. Applications and Usage. Unibroach(R) Cobalt Annular Cutters provide excellent results when drilling high-tensile steel and difficult-to-machine materials. Ideal for drilling into stainless, hardened steels, and other heat resistant alloys where standard HSS struggles. Excellent for onsite drilling with magnetic drills during equipment installation, steel erection, and infrastructure projects. Useful for repetitive holemaking in production environments where durability and accuracy are essential.