Description

Bordo Left Hand Jobber Drill Bit HSS-Co5 Cobalt

Bordo Fractional Left Hand Cobalt Tough Hss-Co5 Jobber Drills Ansi B94-11.
135° Split Point (crankshaft point).
The split point is self-centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust.
The 135° point should be used to cut harder steel materials, especially in deep hole applications.
In these situations, it will produce thicker chips minimising work hardening of the cavity.
Faster penetration reduces abrasion and friction along the cutting edges.
Cobalt HSS jobber drills are extremely hard and provide superior performance and increased tool life, especially in stainless steel and high tensile steel.

Usage

Left-Hand jobber drills are ideal for use with screw extractors to remove broken bolts and screws.
Drill bit surface treatment.

Specifications

AIMS SKU A0173648

Brand Bordo

Model Number 2005-7/64

Barcode Number 9326518004028

Diameter (inch) 7/64

Flute Length (mm) 33

Overall Length (OAL) mm 63

Diameter in (mm) 2.78

Pack Quantity 5

Spindle Speed Stainless Steel RPM 1650

Spindle Speed Tool Steel RPM 2475

Spindle Speed Cast Iron RPM 3300

Spindle Speed Malleable Iron RPM 3712

Spindle Speed Med. Carbon Steel RPM 4124

Spindle Speed Free Cutting Steel RPM 5912

Spindle Speed Aluminium/Brass RPM 8386

Spindle Speed Wood/Plastic RPM 12511

Feed per revolution mm 0.09

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