2005-7/64, 7/64″, HSS Cobalt LEFT HAND Drill

Description: HSS Cobalt LEFT HAND Drill

Brand: Bordo (Cobalt Tough)

Material: High Speed Steel (HSS) Cobalt

Diameter: 7/64 inch

Diameter: 2.78mm

Flute Length: 33mm

Overall Length: 63mm

MPN: 2005-7/64

Feed Per Revolution: 0.09mm

Spindle Speed Aluminum / Brass: 8386 RPM

Spindle Speed Cast Iron: 3300 RPM

Spindle Speed Free Cutting Steel: 5912 RPM

Spindle Speed Malleable Iron: 3712 RPM

Spindle Speed Med Carbon Steel: 4124 RPM

Spindle Speed Stainless Steel: 1650 RPM

Spindle Speed Tool Steel: 2475 RPM

Spindle Speed Wood / Plastic: 12511 RPM

Quantity Per Package: 5 pieces

Description

7/64″ HSS Cobalt LEFT HAND Drill
Bordo Fractional Left Hand Cobalt Tough HSS-Co5 Twist Drills.
135° Split Point (crankshaft point)
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 Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
Left Hand Twist drills are ideal for use with screw extractors to remove broken bolts and screws.
Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.