Trend DWS/P3/FC Pocket Stone D/S F/C 3X1X 1/32 INCH FEATURES Double-sided fine continuous diamond with fine grade (600 grit, 25 micron) and coarse (300 grit, 50 micron). Diamond sharpens up to 98% quicker than conventional methods. Monocrystalline diamonds bonded by electroless process to a precision ground pre-plated nickel carbon steel base. Continuous diamond surface prevents diamond and nickel lift give more effective anti corrosion & prevents 'snagging' on smaller tooling. Ideal for HSS, TCT router cutters, plane irons, knifes, chisels Ideal for small tools. Users include Rolls Royce & British Aerospace. SPECIFICATION Size=87 mm x 25 mm x 1.6 mm Grade=Fine & Course  Grit=600 & 300 (25 & 50 micron)