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Drill Diameter

Overall Length

Drill Diameter Tolerance

Point Angle

Flute Construction

Standards Met

Series

Number of Flutes

Point Type

Shank Diameter Tolerance

Flute Type

Material

Cutting Direction

Coolant Delivery

Web Thickness

Finish/Coating

Helix Type

Material Grade

Series J100 - Inch
General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Point angle: 118°, helix angle: normal, web thickness: standard, relief angle: 10°-20°, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS 328/DIN338RN. 

Bright Finish
Drills with a bright finish are supplied in the as-ground condition and such tools are used generally in the machining of non-ferrous materials.