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Irwin cobalt drill bit, 4.5mm diameter, 80mm length, metallic finish with spiral flutes.

Irwin® 10502551 Hss Cobalt Drill Bit 4.5Mm Ol:80Mm Wl:47Mm

Name: Irwin® 10502551 Hss Cobalt Drill Bit 4.5Mm Ol:80Mm Wl:47Mm
Brand: IRWIN®
SKU: 37977469225

by IRWIN®

£1.94from 3 retailers

GTIN05709131283058

EAN5709131283058

MPNIRW10502551

Prices updated 7 Jun 2026

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Product Description

The Irwin Metric HSS Cobalt Drill Bits are perfect for drilling stainless steel and other high alloys. Their 135° split point grinding ensures perfect centring and reduced drilling pressure. An industrial quality ground flute ensures high accuracy drilling and fast removal of chips. The drill bit body is manufactured from high quality HSS steel containing 5% Cobalt (Co). The added 5% Cobalt improves the red hardness (heat resistance) of the drill bit and results in significantly extended life. It has an attractive golden tempered surface finish.Diameter: 4.5mm.Working Length: 47mm.Overall Length: 80mm.PTDIRW10502551

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