Description

Bordo Black HSS Jobber Drill Bit Imperial - 2000 Series

Bordo Black Knight M2-HSS Twist Drills.
ANSI B94-11
118° Split Point (crankshaft point)
Split point is self centering and reduces the need for end thrust.
Friction at workpiece is reduced.
118° point angles are ideal for use in materials such as mild steel and cast iron.
The 118° point creates easily controlled chips which are wide and thin.
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.

Specifications

AIMS SKU A0200208

Brand Bordo

Model Number 2000-31/64S

Barcode Number 9326518016212

Diameter (inch) 31/64

Flute Length (mm) 111

Overall Length (OAL) mm 149

Diameter in (mm) 12.3

Spindle Speed Stainless Steel RPM 311

Spindle Speed Tool Steel RPM 466

Spindle Speed Cast Iron RPM 621

Spindle Speed Malleable Iron RPM 699

Spindle Speed Med. Carbon Steel RPM 777

Spindle Speed Aluminium/Brass RPM 1580

Spindle Speed Wood/Plastic RPM 2356

Feed per Revolution (mm) 0.24

Spindle Speed Free Cutting Stl RPM 1113

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