Drill Service (Horley) Ltd Contact sales on sales@drill-service.co.uk or call +44 (0)1293774911 DCOLS - Long Series Cobalt DrillHSCo Cobalt Long Series Drills The HSCo Cobalt Drill has a greater impact resistance and edge strength as well as better wear qualities under extreme cutting pressures. These drills show particular advantages on difficult steels with a tenacious swarf, stainless, nimonic, titanium, etc. Cutting speeds should be about half that used with HSS.
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