Description

Bordo Black Night M2 HSS Jobber Drill Bit

Bordo Black Knight M2-HSS Twist Drills.
DIN338.
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.

About 118° Split Point

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.

Specifications

AIMS SKU A0198518

Brand Bordo

Model Number 2000-5/16

Barcode Number 9326518001850

Point Type 118° Split Point

Diameter (inch) 5/16

Flute Length (mm) 81

Overall Length (OAL) mm 114

Diameter in (mm) 7.94

Spindle Speed Stainless Steel RPM 481

Spindle Speed Tool Steel RPM 722

Spindle Speed Cast Iron RPM 963

Spindle Speed Malleable Iron RPM 1083

Spindle Speed Med. Carbon Steel RPM 1203

Spindle Speed Aluminium/Brass RPM 2447

Spindle Speed Wood/Plastic RPM 3650

Flute Type 30° Helix

Feed per Revolution (mm) 0.16

Spindle Speed Free Cutting Stl RPM 1725

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