
Irwin
Irwin IWHT48443BC-0 Strait-Line Speedline Pro Chalk Reel Set IWHT48443BC-0
£15.48
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3 prices compared · £3.49–£4.36
The Irwin 4.2mm HSS Cobalt Drill Bit offers precise sizing for specialist applications in stainless steel and other high alloys.
This diameter is particularly useful for clearance holes where exact sizing is critical, and for technical fabrication work in demanding materials.
Updated 46 minutes ago
My Tool ShedLowest
In stock
£3.49
£4.50
Tooled Up
In stock
£3.49
£4.50
Blueperry Tool & Builders Merchants (UK)
In stock · £0.87 more
£4.36
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This page compares live feed prices for Irwin IRWIN® HSS Cobalt Drill Bit 4.2mm OL:75mm WL:43mm 10502549 by Irwin in Tin Coated & Cobalt Jobber Drill Bits. 3 shops currently list it in the selected country. Visit retailer is an affiliate hop. You finish the order on the shop’s site.
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27 Sept 2026 – 28 Sept 2026 · 2 recorded prices

Irwin
£15.48
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Irwin
£42.05
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Irwin
£9.57
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Irwin
£39.49
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Irwin
£13.83
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Irwin
£11.10
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Irwin
£37.80
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Irwin
£24.60
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