High speed steel ground flute jobber drills are manufactured to BS328: Part 1: 1986,
DIN338N & ANSI B94-11M. Helix angle: normal. Tolerance of diameter: h8.
Tolerance of shank: f11.
Contents: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5 and 13.0mm