PriceCompass
Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.5mm OL:80mm WL:47mm 10502585

Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.5mm OL:80mm WL:47mm 10502585

Irwin

Irwin IRWIN® HSS Pro TiN Coated Drill Bit 4.5mm OL:80mm WL:47mm 10502585

Model 10502585

Best price

£1.72atBlueperry agriculture (UK)Lowest we’ve seen
3 retailers comparedSave £0.89 vs the dearest

Where to buy

Retailers stocking this product, cheapest first
RetailerPriceAvailabilityVisit
Blueperry agriculture (UK)Cheapestchecked an hour ago£1.72In stockVisit Blueperry agriculture (UK) (opens in a new tab)
Tooled Upchecked an hour ago£1.95£2.38In stockVisit Tooled Up (opens in a new tab)
Blueperry Tool & Builders Merchants (UK)retailer's price from 16 Jul 2026£2.61In 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 4.5mm in diameter, with an overall length of 80mm and a working length of 47mm, supplied singly. It is designed for drilling metal and harder, tougher alloys, with the 4.5mm size useful for specific bolt sizes or applications needing exact tolerances. The TiN coating allows speed increases of 40-60% and feed rate improvements of 10-20% compared to standard HSS bits, without significantly reducing tool life. TiN is a poor conductor of heat, so heat generated during drilling is diverted into chips and coolant rather than the bit itself. The bit has a 135° split point grinding tip for accurate centring and reduced drilling pressure. Its HSS steel body is coated with 2.5µ TiN, with a hardness of around 80 HRC, giving good wear resistance and a low coefficient of friction that reduces power consumption and heat.

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