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IRWIN Auger Bits: 5/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank - Spur Auger Drill Bits
IRWINSpur Auger Drill Bits

IRWIN Auger Bits: 5/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank

The IRWIN Spur Auger Drill Bits (SKU 3G-OTH-191736, MPN 49905) are 5/16-inch drill bits made from High Speed Steel with a Bright (Uncoated) finish. They feature a 7 1/2-inch overall length, a hex shank with a…

SKU 3G-OTH-191736

Brand
IRWIN
Item
Auger Bits: 5/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank
Category
Spur Auger Drill Bits
Available to Order
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

IRWIN
Manufacturer Part Number
49905
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 Spur Auger Drill Bits (SKU 3G-OTH-191736, MPN 49905) are 5/16-inch drill bits made from High Speed Steel with a Bright (Uncoated) finish. They feature a 7 1/2-inch overall length, a hex shank with a 7/32-inch hex size, and are designed for use as spur auger bits.

Frequently Asked Questions

What is the IRWIN 49905 spur auger bit used for?

The IRWIN 49905 spur auger bit is designed for drilling clean, precise holes in wood. Its spur tip scores the wood fibers for a smooth entry, making it ideal for carpentry, framing, and general construction applications where accuracy is required.

What are the specifications of the IRWIN 49905 auger bit?

The IRWIN 49905 is a 5/16-inch spur auger bit with a 7 1/2-inch overall length. It features a hex shank with a 7/32-inch hex size, is made from high-speed steel, and has a bright (uncoated) finish. The manufacturer part number is 49905.

Where to buy IRWIN 49905 auger bits worldwide?

IRWIN 49905 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, ensuring you receive the correct IRWIN spur auger bits for your project.

How to select the right IRWIN auger bit size?

To select the right IRWIN auger bit, match the drill bit diameter (e.g., 5/16 inch) to your fastener or hole requirement. Ensure the shank type (hex) fits your drill chuck. For deep holes, confirm the overall length (7 1/2 inches) is sufficient. Always use sharp bits for clean results.

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: 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49904)
IRWIN
IRWIN Auger Bits: 1/4 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 7/32 in Shank Hex Size (MPN 49904)
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)
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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: 9/16 in Drill Bit Size, 7 1/2 in Overall Lg, Hex Shank, 5/16 in Shank Hex Size (MPN 49909)
IRWIN
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: 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)
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)

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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)
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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 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)