Bordo 11/64" HSS Cobalt Jobber Drill Bit - Imperial
Available
The Bordo HSS Cobalt Jobber Drill Bit - Imperial is part of Bordo's Australian range of jobber drill bits, built for reliable performance in trade and industrial applications.
Key Specifications
| Diameter in (mm) | 12.7 |
|---|---|
| Diameter (inch) | 1/2 |
| Spindle Speed Free Cutting Stl RPM | 1294 |
| Flute Type | 30° Helix |
| Flute Length (mm) | 114 |
| Overall Length (OAL) mm | 152 |
| Feed per Revolution (mm) | 0.32 |
| Spindle Speed Aluminium/Brass RPM | 1836 |
| Spindle Speed Stainless Steel RPM | 361 |
| Spindle Speed Wood/Plastic RPM | 2739 |
| Point Type | 135° Split Point |
| Spindle Speed Malleable Iron RPM | 813 |
| Spindle Speed Med. Carbon Steel RPM | 903 |
| Spindle Speed Cast Iron RPM | 722 |
| Spindle Speed Tool Steel RPM | 542 |
Product Features
- ANSI B94-11
- Bordo Fractional Cobalt Tough HSS-Co5 Twist Drills
- Cobalt HSS Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel
- Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes
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Bordo HSS Cobalt Jobber Drill Bit - Imperial: 11/64
SKU: A0198622 | Model: 2010-11/64
Diameter (inch) 11/64. Bordo HSS Cobalt Jobber Drill Bit
HSS Cobalt Twist.
Bordo Fractional Cobalt Tough HSS-Co5 Twist Drills.
ANSI B94-11
135º 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 135º 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.
Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.
About 135° Split Point
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.