Drill Service (Horley) Ltd Contact sales on sales@drill-service.co.uk or call +44 (0)1293774911 DCOSTEP - HSCo Cobalt Multi Diameter Step Drills![]() HSCo Cobalt Multi Diameter Step Drills for machining sheet steel and thin materials. Spiral flutes for easier tool penetration and three flated shank for better holding. ![]()
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