Hougen 4-12232 1" X 4" "12,000-Series" Annular Cutter rotaloc carbide It is constructed from M42

It is constructed from M42 high-speed steel or Carbide Cutters with stack-cut geometry for penetrating multiple plates in a single pass and renders magnificent durability

Up to 10 cutting edges distribute load evenly

The Hougen split point quickly starts the hole and the double angled flutes increase penetration speed

• Biodegradable & Non-toxic

Hougen Step Drills allow the convenience of drilling multiple size holes using one drill bit

Hougen 4-12232 1" X 4" "12,000-Series" Annular Cutter rotaloc carbide It is constructed from M42Item 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