3/8" Irwin power drill long ship auger bit, 520H series

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Manufacturer: Irwin

3/8" Irwin power drill long ship auger bit: 520H series, 12" twist length, 17" overall length, 5/16" hexagonal shank , single-twist, medium-fast screw pitch, spur-free cutting edge, hollow center flutes, wide lands, heat-treated full length, for proximity