Groom Professional Ceramic Cutter Ceramic cutters will extend the life of your blades. These ceramic cutters will convert any A5 type blade to the ceramic version. Ceramic cutter Run cooler & less maintenance Converts any A5 blade to ceramic To Use: Change cutters when blades are blunting. Simply replace the steel top blade with one of these. Note: Blade in picture not included. Want help looking after your clipper blades? Check out Blade Do's and Don'ts