Drill Service (Horley) Ltd Contact sales on sales@drill-service.co.uk or call +44 (0)1293774911 CSD - Magnicon Diamond Plated CountersinkThe best finish is obtained from this diamond impregnated countersink with 60/80 grit on graphite, epoxy, carbon and boron. Use 40/50 grit on fibreglass. Available with angle of 100 degrees and a detachable pilot.
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