Bordo 1/8″ HSS Long Series Drill – Clam

Description

1/8″ HSS Long Series Drill – Clam
ANSI B94-11
118º chisel point with 30º helix.
Chisel point is suitable for general purpose drilling.
Black Finish Twist Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life.
Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
Category: Bordo, Drills, Specialist, Long Series HSS, Long Series Black HSS, Black Fractional Hang Sell
Fluent Length (mm): 70
Overall Length (mm): 131