An annular cutter is a type of drilling tool, which is also called a Rotabroach, core cutter, broach cutter, magnetic drill, mag drill, core drill, trepanning drill, hole saw and cup-type cutter. They are outstanding for the hole-making process. These cutters only cut the outside edges of holes and they take less horsepower so they help save time for machines with lower power. Good for harder steel. Drill much larger holes and require less force and time than standard twist bits. Take less horsepower, suitable for lower power machines. Significantly faster than interpolating with an end mill. Much more long-lasting than twist drills or hole saws. Less expensive than indexable drills, twist drills, and end mills. Eject a ‘slug’, the cylindrical steel from the cutter’s center, after the hole is cut. Chips are produced from the outside cutting edges. Annular Cutters are outstanding for hole-making processes, with faster cutting speed, more long-lasting and better hole finishing. Since annular cutters take less horsepower, they are especially suitable for machines with lower power so that you can save time and use more potential cutting tools. They are the solution of making holes on metal. Accurate burr-free holes are produced with tight tolerances without pre-drilling or step drilling.
