#3700411 is a 6" Type 6 Straight Cup Grinding Wheel used for knife grinding on Foley-Belsaw Model 355 / 384 / 3055 / 3084 Sharpeners. It features a vitrified bond for steel grinding, and is commonly used to sharpen woodchipper blades.
This white grinding wheel cuts fast and generates less heat than other types of wheels. It is appropriate for flat blades.
This is a good substitute for the wheel Item #3700267 which is no longer available.