Meet the Irwin 1-1/8 in. x 6 in. L High Speed Steel Drill Bit with a Straight Shank—a rugged, precision tool built for demanding metalworking and versatile drilling tasks. This long-reach bit is designed to punch through tough materials while maintaining accuracy and control, making it a dependable choice in any workshop.
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Cutting diameter: 1-1/8" (1.125")
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Overall length: 6"
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Flute length: 3"
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Shank diameter: 1/2"
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Shank type: Straight Shank
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Material: High Speed Steel (HSS)
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Finish: Black Oxide
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Packaging: Tube
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Quantity in package: 1
The Irwin drill bit’s high-speed steel core delivers dependable performance across metalworking tasks, while the black oxide finish reduces friction and extends bit life under repetitive drilling. The 1/2" straight shank fits a wide range of chucks, making it compatible with handheld drills and drill presses alike. With a generous 6" overall length and a 3" flute, you gain the reach you need for deep holes in metal, plastic, or wood-based projects, without sacrificing control or precision.
What makes this Irwin drill bit stand out
- Ideal for creating sizable pilot holes, deburring, or preparing hardware installations in thicker materials.
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Long reach for deep work: The 6" overall length and 3" flute let you drill into recessed areas or through longer workpieces with stability.
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Durable, versatile finish: Black Oxide protects the cutting edges and reduces heat buildup, contributing to longer bit life in demanding applications.
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Reliable compatibility: Straight 1/2" shank works with most standard chucks, from portable drills to benchtop drill presses.
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Single-piece packaging: Shipped in a protective tube to prevent damage and keep the bit ready for immediate use.
Ideal use cases
Use this Irwin drill bit for large-diameter holes in steel plates, aluminum extrusions, or other metal workpieces. It’s well-suited for fabricating structural components, mounting hardware, or creating pass-through holes for wiring and fasteners. For woodworking or plastic projects, it can handle softer materials where a wide, clean hole is required, though performance is optimized in metal with appropriate cutting speeds and lubrication.
Practical tips for best results
- Lubricate when drilling metal—cutting oil or light oil reduces heat and extends bit life.
- Secure the workpiece and use a slower drill speed to prevent grabbing and wander on tough materials.
- Begin with a small pilot hole if drilling through particularly hard or thick material to improve accuracy.
- Back the work with a sacrificial piece of scrap wood or a backing board to minimize burrs and tear-out on the exit side.
Choose the Irwin 1-1/8 in. x 6 in. L High Speed Steel Drill Bit with Straight Shank for durable performance, deep-hole capability, and reliable results across a range of common drilling tasks. This single, purpose-built bit is a practical addition to any metalworking toolkit, offering precision, longevity, and versatility in a trusted Irwin design.
