Reduces horsepower and improves slug ejection. Hougen® 12000-Series 1/2 Stack Geometry Annular Cutter has 1 maximum depth of cut and features hardened M2 high-speed steel material which is accurately ground for ultimate cutting experience while delivers longer life span ✔️ TWO FLATS FOR CUTTER MOUNTING - This system is very rigid and offers up to 2x the tool life as compared to quick change or one touch tool mounting systems. Drill Press Cutter Adapter HOUGEN Arbor For Annular Cutters - Compatible With 1 Depth 12,000-Series Cutters Metal Cutting Arbor Hougen 12000 Series Cutter Kit Hougen 12240 1-1/4" X 2" DOC 12,000-Series Rotabroach Annular Cutter Deep Hole Drilling ✔️ PATENTED HOUGEN-EDGE GEOMETRY - Provides faster, smoother cuts, with less chatter. Hougen 12130 15/16" X 1" "12,000-Series" Annular Cutter MARGINS - Only a thin area of material touches the outside of the hole which provides for less friction and a better hole finish. ✔️ GROUNDED & FULLY FLUTED - Provides better chip evacuation, requires less HP and offers better performance in deeper holes , ✔️ O., D.