Sherwood Jobber Drill Set, 1/16in to 3/8in x 1/64in, Inch, High Speed Steel, Set of 21

General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Manufactured from High Speed Steel (HSS), each jobber drill is of an industrial quality, with a ground flute and a blue finish. The 21 piece set is supplied in an indexing metal case. The drills have a point angle of 118, a normal helix angle, a standard web thickness, a relief angle of 10-20, a tolerance of diameter of h8 and a tolerance of shank of f11. Features and Benefits • Manufactured from High Speed Steel (HSS) for durability • 21 piece set ensures you have the right sized jobber drill to hand • Supplied in an indexed metal case for ease of storage and transportation Contents • 1 x 1/16in. • 1 x 5/64in. • 1 x 3/32in. • 1 x 7/64in. • 1 x 1/8in. • 1 x 9/64in. • 1 x 5/32in. • 1 x 11/64in. • 1 x 3/16in. • 1 x 13/64in. • 1 x 7/32in. • 1 x 15/64in. • 1 x 1/4in. • 1 x 17/64in. • 1 x 9/32in. • 1 x 19/64in. • 1 x 5/16in. • 1 x 21/64in. • 1 x 11/32in. • 1 x 23/64in. • 1 x 3/8in. Typical Applications • Suited for drilling steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite Standards • BS328:Part 1 • DIN 338N • ANSI B94 - 11M