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 ,135

helix angle: normal,

web thickness: standard,

relief angle: 10-20,

tolerance of diameter: h8,

tolerance of shank: f11.

Set contains: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64" and 3/8".

Case Type Metal

Flute Construction Ground Flute

Finish/Coating Black Oxide

Drill Size Included 1/16in to 3/8in x 1/64in

System of Measurement Inch