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Features. Use Arbor 11122 or 11123, 14 in. D.O.C.. Cut Holes 3x faster lasts 10x longer than twist drills or hole saws ;.. For precision holemaking in sheet metal and frame materials up to 12 in. thick, Blair Rotabroach Annular Cutters make clean, burr-free, round holes with no deforming of stock or damage to the surrounding material. Ideal for sheet metal fabrication or PDR and rustproofing access holes because the snap-in plugs fit perfectly. Custom builders and aftermarket equipment installers can also count on the superior quality holes.. Rotabroach Cutters are precision ground and made of M2 H.S.S. with a patented tooth geometry that also prevents chip clogging whether cutting steel, sheet metal or plastics. Unlike hole saws and twist drills that push and tear through materials, these cutters will make hundreds of holes with no deforming of stock, jagged edges or out-of-round holes.. Size - 4 in.. 3 Pack.. Item Weight - 0.105 lbs.