
The Irwin 13 x 380/300mm auger bit is the extended-length option for deep, clean 13mm holes in timber and nail-embedded wood. Its self-pulling thread feeds the bit into the material while the spiral 'LEWIS' groove clears chips for fast drilling at depth.
The peripheral cutting edge keeps holes clean with minimal spalling, while the extra length suits beams, posts and stacked timbers. Add other diameters to put together an Irwin auger drill bit set for services and joinery.
The Irwin 13 x 380/300mm Auger is a durable drill bit designed for accurate drilling in tough materials, including nail-embedded wood.
It is engineered for precision drilling, featuring a self-pulling thread that ensures accuracy. Its spiral groove shape, known as 'LEWIS', facilitates maximum chip transport and enhances drilling efficiency. The peripheral cutting edge is designed to create clean holes with minimal spalling. This auger accommodates both cylindrical and hexagonal shank chucks.
It drills a 13mm diameter hole.
It has a 380mm overall length with a 300mm working length for deeper holes.
Yes. It is built for accurate drilling in tough timber, including nail-embedded wood.
It lets you drill deeper holes and reach through thicker timber than a standard auger bit.
The spiral 'LEWIS' groove transports chips out of the hole for efficient drilling.
Highly recommend
Really impressed with the Irwin 13 — it looks and feels more premium than the price suggests. Delivery was quick and packaging kept everything safe. No issues at all.
Great quality
Good quality and arrived ahead of schedule. Very happy.
Brilliant Aussie deal
Been buying Irwin gear for years and this is one of their better ones. The Irwin 13 quality is excellent — everything was included and setup took under 10 minutes. Had it at the door in Brisbane within 2 days. My son immediately claimed it for himself so I had to order another. 10 out of 10.
No complaints at all
Exactly as described. Quick shipping. Would buy again.
Works perfectly out of the box
Was exactly what I needed for the price I paid. Arrived well packaged and was easy to set up straight away. Already recommended it to a friend who is also thinking of getting one.
Worth every cent
Did a lot of comparison shopping before buying here and I have no regrets. Best price I found anywhere and delivery was fast — 3 days to Melbourne. Product feels genuinely premium, not cheap at all. Packaging was solid too, box arrived in perfect shape. Will be back for more.

