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Cobalt Screw-Machine Length Drill Bits
Available943 products
Cobalt screw-machine length drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel screw-machine length drill bits. They provide some shock absorption and can be used in handheld power tools. Screw-machine length drill bits are shorter than jobber length and maintenance length drill bits of the same size. Also called stub length drill bits, they provide more strength and rigidity and can drill straighter holes than longer drill bits. Their short length also allows them to access tight spaces where longer drill bits cannot fit.
Straw/Bronze-Finish Spiral-Flute Cobalt Screw-Machine Length Drill Bits
These drill bits have a straw/bronze finish that improves their wear resistance. Spiral-flute drill bits evacuate chips as the bits drill into a workpiece.
Decimal Inch + 135 ° Drill Bit Point Angle + Radial Point
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Decimal Inch + 135 ° Drill Bit Point Angle + Split Point
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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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TiN-Coated Spiral-Flute Cobalt Screw-Machine 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 + 118 ° 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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Wire + 130 ° Drill Bit Point Angle + Notched Point
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Straw/Bronze Finish Parabolic-Flute Cobalt Screw-Machine Length Drill Bits
These drill bits have a straw/bronze finish that improves their wear resistance. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drill moves deeper into the 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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Wire + 135 ° Drill Bit Point Angle + Split Point
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TiAlN-Coated Parabolic-Flute Cobalt Screw-Machine Length Drill Bits
These drill bits have a TiAlN coating that withstands high temperatures and protects the bits from wear during high-speed, dry machining applications with difficult-to-machine ferrous metals. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drill moves deeper into the 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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Wire + 135 ° Drill Bit Point Angle + Split Point
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TiN-Coated Parabolic-Flute Cobalt Screw-Machine Length Drill Bits
The TiN coating on these drill bits protects them from wear and heat when drilling steel, stainless steel, and aluminum. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drill moves deeper into the 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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Wire + 135 ° Drill Bit Point Angle + Split Point
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TiCN-Coated Parabolic-Flute Cobalt Screw-Machine Length Drill Bits
The TiCN coating on these drill bits protects them from wear and is harder and more wear-resistant than a TiN coating. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drill moves deeper into the 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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Wire + 135 ° Drill Bit Point Angle + Split Point
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TiCN-Coated Spiral-Flute Cobalt Screw-Machine Length Drill Bits
The TiCN coating on these drill bits protects them from wear and is harder and more wear-resistant than a TiN coating. Spiral-flute drill bits evacuate chips as the bits drill into a workpiece.
Fractional Inch + 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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TiAlN-Coated Spiral-Flute Cobalt Screw-Machine Length Drill Bits
These drill bits have a TiAlN coating that withstands high temperatures and protects the bits from wear during high-speed, dry machining applications with difficult-to-machine ferrous metals. Spiral-flute drill bits evacuate chips as the bits drill into a workpiece.
Fractional Inch + 135 ° Drill Bit Point Angle + Split Point
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