Annular Cutters or magnetic core drills are for precision hole making in a wide range material RuiXinTool Magnetic Core drills/Annular Cutters make clean, burr-free, round holes with no deform of stock or damage to the surrounding material;

Ideal for metal sheets and rust proofing access holes because the snap-in plugs fit perfectly;

Cutting Depth from 1" to 4" available;

Premium carbide tips ensure a longer tool life. The unique geometry provides aggressive cutting than traditional hole saws and twist drills. Large holes can be drilled up to ten times faster than regular drills;

Weldon shank with 2 flats at 90-Degree makes cutters mounting reliable, and extend tool life than other mounting system. It fits most brand magnetic drill pressers;

Multiple cut edges provide more efficient cut rate with less chatter and suit to making overlapping holes, slotting holes and edge cuts in various metals accurately, quickly & safely;

I.D. back taper improves easily discharge slugs, faster feeding, and less friction; O.D. margin ensures only a small land touches the outside of the hole which provide less fraction and a better hole surface finish;

Precision fully ground flutes provide easier chip removal, less H.P., better cutting performance and a smooth hole finish in various materials, especially in deeper holes; Using coolant or Lubricant for better cutting result;