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IRWIN Auger Bits: 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank - Spur Auger Drill Bits
IRWINSpur Auger Drill Bits

IRWIN Auger Bits: 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank

The IRWIN 1/4 in Drill Bit Size Spur Auger Drill Bit (MPN 49904) is a high-speed steel, bright (uncoated) spur auger bit with a 7 1/2 in overall length and a hex shank measuring 7/32 in hex size. Designed for…

SKU 3G-OTH-191735

Brand
IRWIN
Item
Auger Bits: 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank
Category
Spur Auger Drill Bits
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

IRWIN
Manufacturer Part Number
49904
Type
Hex Shank
Overall Lg
7 1/2 in
Shank Hex Size
7/32 in

Technical Documents

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IRWIN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The IRWIN 1/4 in Drill Bit Size Spur Auger Drill Bit (MPN 49904) is a high-speed steel, bright (uncoated) spur auger bit with a 7 1/2 in overall length and a hex shank measuring 7/32 in hex size. Designed for industrial drilling applications, this IRWIN-branded tool offers a 1/4 in drill bit size and a hex shank for secure chuck grip.

Frequently Asked Questions

What is the IRWIN 49904 spur auger bit used for?

The IRWIN 49904 spur auger bit is designed for drilling clean, precise holes in wood and composite materials. Its spur tip scores the wood fibers for a smooth entry, making it ideal for cabinetmaking, framing, and general construction where accuracy and chip removal are critical.

What are the specifications of the IRWIN 49904 auger bit?

The IRWIN 49904 is a 1/4 in drill bit size spur auger bit with a 7 1/2 in overall length. It features a high-speed steel construction with a bright (uncoated) finish and a hex shank measuring 7/32 in hex size. The hex shank provides secure grip in impact drivers and chucks.

Where to buy IRWIN 49904 auger bits worldwide?

IRWIN 49904 auger bits are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this IRWIN spur auger bit.

How to select the right IRWIN auger bit for drilling?

Select an IRWIN auger bit based on the material and hole depth. For wood, a spur auger like the 49904 with a 1/4 in size and 7 1/2 in length works for deep, clean holes. Ensure the hex shank matches your drill chuck. For metal or masonry, choose a different bit type.

Used in

Common applications for IRWIN
Wood framing and decking — IRWIN ship auger bits (e.g., SKU 4AAT6) for deep drilling in timber
Electrical and plumbing installations — IRWIN hybrid utility bits (e.g., SKU 5ELR0) for drilling through wood and thin metal
Automotive assembly and repair — IRWIN power socket adapters (e.g., SKU 55EW60) for driving sockets with impact tools
General construction fastening — IRWIN impact Torx bits (e.g., SKU 787P77) for driving screws in metal and wood
Cabinet making and furniture assembly — IRWIN power bits (e.g., SKU 55EW15) for Phillips head screws in particle board and hardwood
Maintenance and repair tasks — IRWIN insert bits (e.g., SKU 55EW26) for quick bit changes in cordless screwdrivers

IRWIN Products

3G Electric supplies IRWIN spur auger drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
IRWIN Auger Bits: 5/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49905)
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IRWIN Auger Bits: 5/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49905)
IRWIN Auger Bits: 9/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49909)
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IRWIN Auger Bits: 9/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49909)
IRWIN Auger Bits: 15/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49915)
IRWIN
IRWIN Auger Bits: 15/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49915)
IRWIN Auger Bits: 1 1/8 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/16 in Shank Hex Size (MPN 49918)
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IRWIN Auger Bits: 1 1/8 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/16 in Shank Hex Size (MPN 49918)
IRWIN Auger Bits: 1 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/16 in Shank Hex Size (MPN 49920)
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IRWIN Auger Bits: 1 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/16 in Shank Hex Size (MPN 49920)

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IRWIN Auger Bits: 3/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49912)
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IRWIN Auger Bits: 11/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49911)
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IRWIN Auger Bits: 1 1/2 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/16 in Shank Hex Size (MPN 49924)
IRWIN Auger Bits: 7/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49907)
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IRWIN Auger Bits: 7/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49907)
IRWIN Auger Bits: 5/8 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49910)
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IRWIN Auger Drill Bit: 3/8 in Drill Bit Size, Hex Shank, 5/16 in Shank Hex Size, Spur Auger Auger (MPN 49906)
IRWIN Auger Bits: 13/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49913)
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IRWIN Auger Bits: 13/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49913)
IRWIN Auger Bits: 1 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49916)
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IRWIN Auger Bits: 1 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49916)