Tube and Sheet Drill High Speed Steel 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