Drester Tools Pvt. Ltd. Manufactures Electroplated Diamond Files. Drester Tools Pvt. Ltd. Offers Electroplated Diamond & Cubic Baron Nitride [CBN] Tools. The Electroplated Diamond Files are available in a wide range of over 100 combinations of shape, size & grit. The Electroplated Diamond Files are suitable for use on carbide, stainless steel, glass, ceramics, ferrites, carbon, graphite, FRP, gold, silver & any materials where conventional files cannot be used. The diamond files are made with carefully selected quality diamonds. The high grit protrusion gives fast stock removal even with low working pressures.