Irwin® 49904 I-100 Full Length Auger Bit, 1/4 in Dia, 7-1/2 in OAL, 4-1/2 in L Spiral Flute, 7/32 in Shank
Power through soft and hard wood with the 1/4 in. Solid Center Auger with Cutting Spur designed with a coarse screw-point for faster drilling. The solid-center design increases overall durability and allows for smooth, straight drilling. Full-length, heat-treating strengthens the twist, guarding against bending in demanding applications. And the single cutting spur scribes the outside of the hole for overall faster drilling, clean holes, and a smooth finish.
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BrandIrwin®
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UPC024721100054
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Manufacturer Part Number49904
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CountryUSA|Canada
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FinishBright
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MaterialHSS
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Flute Length4-1/2 in
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Flute TypeSpiral
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TypeFull Length
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SeriesI-100
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Shank Size7/32 in
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Cutting DirectionRight Hand
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Cutting Edge MaterialHSS
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Shank TypeHex/Straight
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Diameter1/4 in
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Drill StyleAuger
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Overall Length7-1/2 in
- Solid center design provides extra rigidity while boring
- Wide lands keep the bit straight as it bores through the hole
- The flutes are ground behind the lands to funnel chips to the inside of the bit and away from the outside diameter, producing a faster, cleaner cut
- Single spur cutting edge scribes the circumference of the hole for a smoother finish
- Coarse screw point provides fast boring in hard and soft woods
- Full-length heat treated bit guards against bending in heavy duty applications and strengthens the twist where the greatest strain occurs
- Screw+spur+cutter point shape, CW spiral angle
| Competitor Name | Competitor Part Number |
|---|---|
| MSC | 05528278 |
| Fastenal | 0237629 |
| Grainger | 783YW0 |
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UNSPSC27111509
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Irwin® 49904 I-100 Full Length Auger Bit, 1/4 in Dia, 7-1/2 in OAL, 4-1/2 in L Spiral Flute, 7/32 in Shank
Power through soft and hard wood with the 1/4 in. Solid Center Auger with Cutting Spur designed with a coarse screw-point for faster drilling. The solid-center design increases overall durability and allows for smooth, straight drilling. Full-length, heat-treating strengthens the twist, guarding against bending in demanding applications. And the single cutting spur scribes the outside of the hole for overall faster drilling, clean holes, and a smooth finish.

