Irwin
Irwin IRWIN® Wood Auger Drill Bit Long Series 20 x 400mm 10502767
Model 10502767
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked an hour ago | £25.95£41.62 | In stock | Visit Tooled Up (opens in a new tab) |
 checked an hour ago | £29.96 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £33.81 | 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 is a 20mm diameter wood-boring bit with a 400mm overall length, designed for deep boring through thick structural timbers where extra reach and diameter are needed, such as major services routing or heavy post installation.
It features a single spur cutting edge that scribes the hole's circumference for a smoother finish, and a hexagon shank that prevents slipping in drill chucks or bit extensions. A solid centre adds rigidity to maintain straight, accurate boring, while the self-feeding screw point speeds up drilling in both soft and hard woods. The body is fully hardened from tip to shank for durability under demanding use.
| Drillbit diameter | 20.0mm |
|---|---|
| Total length | 400mm |
| Working Length | 323mm |
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