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For low cost sheet metal holemaking. Blaircutters provide fast, accurate, burr-free holes in materials up to 34.8mm thick. Light-duty Blaircutters are annular cutting tools that cut around the edge of the hole and eject the center as a slug. Because they're hollow, there's no dead zone as with twist drills. Unlike hole saws, that rip and tear through the material, they quickly give you a quality, virtually burr-free hole. Blaircutters are available in seven sizes for 6.4mm and larger drill chucks. Spring loaded pilot "pops" the slug from the cutter. Available in sizes from 6.4mmto 15.9mm.
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