Sherwood Jobber drills are general purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. | Industrial quality. Ground flute, blue finish. Supplied in indexing metal cases. | Point angle: 118, helix angle: normal, web thickness: standard, relief angle: 10-20, tolerance of diameter: h8, tolerance of shank: f11. | Manufactured to BS328 : Part 1 DIN 338N & ANSI B94 – 11M. | Set contains: 6.0mm to 10.0mm x 0.1mm increments