Bordo 7/64" Long Series HSS Drill Bit Imperial - 2500-7/64, Pack of 10

Description

Bordo Long Series HSS Black Drill Bit (2500) - Imperial

ANSI B94-11.
118° chisel point with 30° 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.

Specifications

AIMS SKU A0199788

Brand Bordo

Model Number 2500-7/64

Barcode Number 9326518052944

Diameter (inch) 7/64

Flute Length (mm) 64

Overall Length (OAL) mm 118

Surface Finish Black

Diameter in (mm) 2.78

Spindle Speed Stainless Steel RPM 1375

Spindle Speed Tool Steel RPM 2062

Spindle Speed Cast Iron RPM 2750

Spindle Speed Malleable Iron RPM 3093

Spindle Speed Med. Carbon Steel RPM 3437

Spindle Speed Aluminium/Brass RPM 6989

Spindle Speed Wood/Plastic RPM 10426

Flute Type 30° Helix

Type of Point 118° Std Chisel

Feed per Revolution (mm) 0.07

Spindle Speed Free Cutting Stl RPM 4926

Type Long Drill Bit
Material HSS

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