3/4", 10 mm, 1 1/4", 6 mm, 8 mm
0.25", 1/4", 7 mm, 0.1875", 3/16", 0.625", 5/8", 1/16", 0.0625"
38 mm, 21 mm, 35 mm, 30 mm, 25 mm
50 mm, 75 mm, 90 mm, 130 mm, 72 mm
0.03125", 0.0625", 1 mm, 0.0156", 0.4 mm
40 Degrees to 43 Degrees, 36 Degrees, 20 Degrees, 37 Degrees to 39 Degrees, Standard Helix (30 to 40°)