Take on hard metals and tight spaces with confidence using the Century Drill & Tool 3/16 in. x 2-7/8 in. L Cobalt Steel Stubby Drill Bit with Straight Shank. Crafted from polished cobalt steel, this bit is built to resist heat and maintain a sharp cutting edge when drilling demanding materials, delivering clean holes you can trust in every project. The stubby design adds rigidity, reduces flex, and helps you stay precise in cramped work areas, while the straight shank ensures secure, compatible performance with standard chucks.
Key specs at a glance
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Drill Size: 3/16 in
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Overall Length: 2-7/8 in
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Flute Length: 1-1/2 in
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Shank Type: Straight Shank
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Finish: Polished
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Material: Cobalt Steel
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Style: Stubby
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Packaging: Carded, 1 piece
Why this cobalt stubby bit stands out
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Hard-wearing cutting edge: Cobalt steel excels in high-heat environments, helping maintain sharpness when drilling tough metals such as stainless steel and alloy steels.
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Stubby rigidity for accuracy: The shorter flute and overall length reduce bit flex, making it ideal for starting holes in confined spaces or when you need a steady, straight cut.
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Versatile chuck compatibility: The straight shank works with a wide range of standard drill chucks, making it a reliable choice for portable drills and drill presses alike.
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Low-friction finish: The polished surface minimizes resistance and helps with smoother chip removal, contributing to longer edge life and cleaner holes.
Practical use cases
- Drilling hard metals in tight spots, such as automotive brackets, electrical panels, or metal cabinetry where clearance is limited.
- Fabrication and repair work that benefits from reduced bit flex and precise starting holes.
- Projects requiring a durable bit that maintains performance under repeated use in stainless steel and other tough alloys.
Tips to get the most from your bit
- Use appropriate cutting oil or coolant when drilling metals to reduce heat and extend bit life.
- Start at a slow to moderate speed to establish the hole, then adjust as needed for material hardness.
- Feed steadily and avoid applying excessive pressure; let the bit do the cutting to prevent work hardening or dulling.
- Keep chips clear and re-lubricate as necessary to maintain smooth drilling progress.
