Irwin WeldTec 1-1/8 in. D X 17 in. L Auger Bit is engineered for serious woodworkers who demand long-reaching, clean holes without sacrificing durability. The WeldTec line from Irwin delivers performance you can rely on when building furniture, cabinetry, or framing projects that require precise, deep holes.
Key design features include a 1-1/8 in. cutting diameter for substantial holes, a 17 in. overall length for reach into thick stock, and a 7/16 in. Quick-Change Hex Shank for fast, secure bit changes and reduced slippage in compatible drills. The bit is heat-treated to extend life under demanding use, helping you drill more holes between sharpenings.
Why this auger bit stands out
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Deep reach: 17 in. length lets you bore clean, straight holes from the top of deep stock without repositioning as often.
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Large-hole capability: 1-1/8 in. diameter is ideal for large dowels, hardware, or pass-throughs for wiring in cabinetry and furniture projects.
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Durable construction: heat-treated steel increases wear resistance for dense woods and repeated use.
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Reliable bit-changes: Quick-Change Hex Shank minimizes chatter and makes swapping bits quick in busy workshops.
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WeldTec advantage: part of Irwin's WeldTec family, built for long-term performance under real-world conditions.
Ideal for
Woodworkers, carpenters, and DIY enthusiasts tackling furniture assembly, cabinet making, or framing projects who need precise, deep holes with clean edges and minimal wandering.
Pro tips
- Start with a pilot hole if you’re drilling into very hard or knotty wood to guide the auger and prevent wandering.
- Drill at moderate speed and steady feed pressure; let the bit's flute remove chips efficiently to maintain a clean bore.
- Keep the bit cool and clean; wipe away pitch after use to extend life.
