Hougen 12448 48MM X 50MM "12,000-Series" Annular Cutter rotaloc carbide kit The tapered inner diameter provides

The tapered inner diameter provides a relief area between the slug & cutter to reduce horsepower & improve slug ejection

Bus Bodies

this case is the replacement

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Hougen 12448 48MM X 50MM "12,000-Series" Annular Cutter rotaloc carbide kit The tapered inner diameter providesItem Details For use with Hougen Portable Magnetic Drills and many competitive models on materials up to 275 BHN (28. 5 HRC). They are made of hardened M2 high speed steel and are precision ground for excellent performance throughout the cut and long tool life. They require less horsepower and thrust to cut, and last much longer than traditional holemaking methods. "12,000 Series" cutters have a 3 4" diameter double flatted shank. Modified end tooth