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Cobalt Jobber-Length Drill Bits
Available157 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.
Standards
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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TiN-Coated Spiral-Flute Cobalt Jobber-Length Drill Bits
The TiN coating on these drill bits protects them from wear and heat when drilling steel, stainless steel, and aluminum. The bits' spiral flutes evacuate chips as the bits drill into a workpiece.
Decimal Inch + 135 ° Drill Bit Point Angle + Split Point
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Fractional Inch + 130 ° Drill Bit Point Angle + Notched Point
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Fractional Inch + 135 ° Drill Bit Point Angle + Split Point
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Letter + 130 ° Drill Bit Point Angle + Notched 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 + 130 ° Drill Bit Point Angle + Notched Point
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Wire + 135 ° Drill Bit Point Angle + Split Point
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