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Cobalt Jobber-Length Drill Bits
Available4 products
Cobalt jobber-length drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel drill bits. They provide some shock absorption and can be used in handheld power tools. Jobber-length drill bits are the most commonly used drill-bit length. They provide a good balance of strength and accuracy when drilling into a variety of materials.
Drill Bit Size
NAS 907 Type J Straw/Bronze Finish Spiral-Flute Cobalt Jobber-Length Drill Bits
These drill bits meet National Aerospace Specification (NAS) 907 Type J for drill bits used in aircraft repair and production. They have a have a straw/bronze finish that improves their wear resistance, and they have spiral flutes that evacuate chips as the bits drill into a workpiece.
Fractional Inch + 135 ° Drill Bit Point Angle + Split Point
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Letter + 135 ° Drill Bit Point Angle + Split Point
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Metric + 135 ° Drill Bit Point Angle + Split Point
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Wire + 135 ° Drill Bit Point Angle + Split Point
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Straw/Bronze Finish Spiral-Flute Cobalt Jobber-Length Drill Bits
These drill bits have a straw/bronze finish that improves their wear resistance. They also have spiral flutes that evacuate chips as the bits drill into a workpiece.
Fractional Inch + 135 ° Drill Bit Point Angle + Split Point
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Fractional Inch + 143 ° Drill Bit Point Angle + Conventional Point
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Fractional Inch + 143 ° Drill Bit Point Angle + Split Point
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Letter + 135 ° Drill Bit Point Angle + Split Point
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Metric + 135 ° Drill Bit Point Angle + Split Point
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Decimal Inch + 135 ° Drill Bit Point Angle + Radial Point
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Wire + 135 ° Drill Bit Point Angle + Split Point
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Heavy-Duty Straw/Bronze Finish Spiral-Flute Cobalt Jobber-Length Drill Bits
These drill bits can drill into harder materials than would be possible with standard cobalt jobber-length drill bits with a straw/bronze finish. They are used for drilling tough, high-tensile, and work-hardened materials like titanium. The bits have a straw/bronze finish that improves their wear resistance, and they have spiral flutes that evacuate chips as the bits drill into a workpiece.
Fractional Inch + 135 ° Drill Bit Point Angle + Split Point
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Letter + 135 ° Drill Bit Point Angle + Split Point
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Metric + 135 ° Drill Bit Point Angle + Split Point
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Wire + 135 ° Drill Bit Point Angle + Split Point
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