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Irwin 4990 I-100 Series Solid Center Auger Bit with Cutting Spur
The Irwin 4990 I-100 Series Solid Center Auger Bit with Cutting Spur is available in 1/2" and 9/16" sizes, giving carpenters, framers, and woodworkers a dependable auger bit for boring both soft and hard woods. Every bit in the I-100 Series features a solid-center design, a coarse screw-point for fast drilling, and a single cutting spur that scores wood fibers ahead of the cutting edge for straighter holes and a smoother finish. Full-length heat-treated construction delivers superior bend resistance and a stronger twist for demanding boring applications, whether the bit is chucked into a hand brace or a power drill on the jobsite.
Key Features
- Available Sizes: 1/2" and 9/16" auger bit options sized for standard boring applications in wood.
- Durable Construction: Solid-center design increases durability and allows for smooth, straight drilling.
- Fast Drilling: Coarse screw-point pulls the bit into the workpiece for fast drilling in both soft and hard wood.
- Cutting Spur: Single cutting spur scores the wood fibers ahead of the cutting edge for straighter holes and a smoother overall finish.
- Bend-Resistant: Full-length heat-treating strengthens the twist and prevents bending, even in demanding boring applications.
- Hand or Power Use: Designed as a non-energy-using accessory bit for use with braces or power drills on the jobsite.
Technical Specifications
- Warranty: NLW
- Claims Needed: No
- Individual Vs. Set (Syndigo): INDIVIDUAL
- Net Lit-Ion Y/N: No
- Country of Origin: BRA
- Battery Included: No
- Power Source: NON-ENERGY USING
Typical Applications
- Boring Holes in Soft and Hard Woods
- Framing and Rough Carpentry
- Cabinetry and Furniture Making
- General Woodworking and Drilling Tasks
- Professional Jobsite Boring Applications
Why Irwin?
Irwin's I-100 Series auger bits pair a solid-center body with full-length heat-treating to stand up to repeated boring in both soft and hard woods without bending or twisting, available in 1/2" and 9/16" sizes to match the task at hand. The coarse screw-point and single cutting spur work together to deliver fast starts, straighter holes, and a smoother finish, giving carpenters, framers, and woodworkers a dependable bit for demanding jobsite use. Packaged 24 per case, the I-100 Series is built to keep crews stocked and working.
Manufacturer Resources
Product Specs
- Warranty:
- NLW
- Claims Needed:
- No
- Individual Vs. Set (Syndigo):
- INDIVIDUAL
- Net Lit-Ion Y/N:
- No
- Country of Origin:
- Brazil
- Battery Included:
- No
- Power Source:
- NON-ENERGY USING
- list_batch:
- IRW-20260923
- Product Type:
- Auger Bit
- Series:
- I-100
- Department:
- Electrical
- Product Subgroup:
- Hole Saws & Bits
- Product Size:
- 9/16"
- Product Size:
- 1/2"
- Product Width:
- 1 inch