Irwin
Irwin IRWIN® HSS Cobalt Drill Bit 11.0mm OL:142mm WL:94mm 10502566
Model 10502566
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 2 hours ago | £12.95£22.48 | In stock | Visit Tooled Up (opens in a new tab) |
 checked an hour ago | £16.19 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £19.28 | 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 HSS Cobalt drill bit measures 11.0mm in diameter, with a working length of 94mm and overall length of 142mm. It is designed for heavy-duty drilling in stainless steel and other high alloys, making it suitable for substantial clearance holes, pilot holes and fabrication work.
The bit body is made from HSS steel containing 5% Cobalt, which improves red hardness (heat resistance) and extends the working life of the tool, especially when drilling demanding materials. A 135° split point grinding ensures accurate centring without bit walk and reduces the drilling pressure needed.
The industrial quality ground flute design supports accurate drilling and fast chip removal, helping to prevent clogging. It has a golden tempered surface finish reflecting its heat treatment.
Features and Benefits
- :
- 11mm diameter for heavy-duty drilling tasks
- 5% Cobalt for exceptional heat resistance
- Perfect centring with 135° split point grinding
- Extended life in stainless steel and high alloys Specifications: Tip Diameter (mm): 11.0 Working Length (mm): 94 Overall Length (mm): 142 Pack Qty.: 1
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