Irwin
Irwin IRWIN® HSS TCT Tip Drill Bit 4.0mm OL:75mm WL:43mm 10502631
Model 10502631
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 2 hours ago | £13.95£19.62 | In stock | Visit Tooled Up (opens in a new tab) |
 checked an hour ago | £14.12 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £16.90 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
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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 4.0mm Irwin HSS TCT drill bit is designed for use with stationary drilling machines when working with hardened materials such as hardened steel, cast iron, bronze alloys and manganese alloyed steel up to 50 Rockwell C. The tungsten carbide tip is four-facetted ground, giving good centring from the first contact and reducing the drilling pressure needed, which helps prevent deflection and gives cleaner holes. The body is made from Chrome Vanadium Steel hardened to 56 Rockwell C for strength when drilling hard materials. Irwin recommend using a 3-6% coolant emulsion, which improves cutting performance and extends the life of the carbide tip. Overall length is 75mm with a working length of 43mm, supplied as a pack of 1.
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