Credit Card Double-Sided Diamond Stone

A Professional Range precision double-sided credit card size diamond stone.|Fine 600 grit (25 micron) Coarse 300 grit (50 micron).|Complete with black storage wallet.|Guaranteed for five years when used with Trend Lapping Fluid.|Ideal for fluted, shaped & small router bits, carbide or HSS, turning tools, chisels, plane blades, carving tools & all general tooling.|Plate thickness 1.6mm for extra stability.|Grit sizes clearly marked on each surface.