Combo and Special Blades are suitable for medium to heavy duty job applications. They are user-friendly and highly functional. Combo and Special Blades are regarded as a premium version of the popular General Purpose Blades. These blades are ideally used for cutting asphalt, green concrete, block, concrete, hard concrete, pavers, brick, clay pavers, hard brick, refractory brick, field stones, marble, granite, and ductile iron pipe.