Irwin
Irwin IRWIN® Wood Auger Drill Bit Long Series 8 x 400mm 10502742
Model 10502742
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 2 hours ago | £13.95£20.27 | In stock | Visit Tooled Up (opens in a new tab) |
 checked an hour ago | £14.59 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £17.44 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyThis is the lowest price we have recorded. If you were waiting for a drop, this is it.
About this product
This Irwin long series auger drill bit measures 8mm in diameter with an overall length of 400mm and a working length of 323mm, designed for deep boring in wood. Its extended reach suits drilling through thick beams, multiple joists and other deep applications where standard bits are not long enough.
The single spur cutting edge scribes the hole's circumference for a smooth finish, while the hexagon shank resists slipping in drill chucks or extensions. A solid centre adds rigidity to prevent deflection over the extended length, and the self-feeding screw point speeds up boring in soft and hard woods. The body is fully hardened from tip to shank for durability.
| Drillbit diameter | 8.0mm |
|---|---|
| Total length | 400mm |
| Working Length | 323mm |
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