BORIDE Engineered Abrasives has developed and manufactured abrasive products for nearly 50 years. Precise process management, fact-based problem solving and extensive material science are important parts of Boride foundation. Stable, good quality, modern production techniques and good service make Boride one of the most attractive brands in the sharpening stone market. Boride stones were originally designed for the polishing of dies and molds, but are widely used to sharpen knives on Edge Pro Apex sharpeners.