Ø D 7 mm L 109 mm l1 40 mm l 31 mm Weight 0,028 kg Even Teeth 6 Points Material efficient high-speed steel HSS. Left hand helix 7° with uniform spacing. Usage Machine reaming of holes in ferrous and non-ferrous metals, their alloys and plastics. Manufacturing Mode F - milled Surface Treatment without treatment Ø d h9 7,0 mm Tolerance H7