PriceCompass
Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.0mm OL:75mm WL:43mm 10502581

Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.0mm OL:75mm WL:43mm 10502581

Irwin

Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.0mm OL:75mm WL:43mm 10502581

Model 10502581

Best price

£1.64atBlueperry agriculture (UK)Lowest we’ve seen
3 retailers comparedSave £0.88 vs the dearest

Where to buy

Retailers stocking this product, cheapest first
RetailerPriceAvailabilityVisit
Blueperry agriculture (UK)Cheapestchecked an hour ago£1.64In stockVisit Blueperry agriculture (UK) (opens in a new tab)
Tooled Upchecked 2 hours ago£1.95£2.28In stockVisit Tooled Up (opens in a new tab)
Blueperry Tool & Builders Merchants (UK)retailer's price from 16 Jul 2026£2.52In stockVisit 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 history

This is the lowest price we have recorded. If you were waiting for a drop, this is it.

£2£2£324 Aug 202616 Oct 2026
Cheapest price across all tracked retailers. Lowest recorded: £2 on 1 Sept 2026.

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About this product

This Irwin HSS Pro TiN Coated Drill Bit measures 4.0mm in diameter, with an overall length of 75mm and a working length of 43mm, supplied individually. It is designed for drilling metal and harder, tougher alloys, suitable for trade and engineering use on steel, aluminium and similar materials. The bit features a 135° split point grinding tip for accurate centring and reduced drilling pressure, removing the need for a pilot hole in most cases. Its HSS steel body is coated with Titanium Nitride, giving a hardness of around 80 HRC and strong wear resistance. Compared with standard HSS bits, drilling speed can be increased by 40-60% without significantly shortening tool life. The TiN coating also has a low coefficient of friction and poor heat conductivity, directing heat away from the bit and reducing power use.

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