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Tube and Sheet Drill, Cobalt, Bright (Uncoated), 1/8 in to 1 3/16 in Size Range, Straight with Three Flats, 6 mm 8 mm 9 mm Shank Hex Size, 6 mm, 8 mm, 9 mm Shank Diameter, 58 mm, 71 mm, 76 mm Overall Length, Maximum Drilling Depth 5/32 in, 9/16 in, 5/8 in