Irwin # 448813B 13/16 x 12" Ship Auger bit with a 7/16" Hex Shank. These are by Irwin but come loose and unmarked. Overall length is 12", twist length is 9". Fast and productive, the auger has wide flutes for fast chip removal and a screw–tip to assist the user in boring fast, clean holes.
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BC 5/16/17 AC
