Description

Bordo Black HSS Jobber Drill Bit Metric - 2003 Series

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.

Specifications

AIMS SKU A0200257

Brand Bordo

Model Number 2003-12.00S

Barcode Number 9326518179542

Diameter (mm) 12

Flute Length (mm) 94

Overall Length (OAL) mm 142

Spindle Speed Stainless Steel RPM 324

Spindle Speed Tool Steel RPM 486

Spindle Speed Cast Iron RPM 648

Spindle Speed Malleable Iron RPM 729

Spindle Speed Med. Carbon Steel RPM 810

Spindle Speed Aluminium/Brass RPM 1646

Spindle Speed Wood/Plastic RPM 2456

Feed per Revolution (mm) 0.23

Spindle Speed Free Cutting Stl RPM 1161

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