High quality materials and workmanship: The grinders made of aerospace aluminium are designed for the rough use as the grinder is additionally hardened due to a special technique. A coating protects against corrosion and ensures the maximum durability. The clever arrangement of the teeth, the nylon friction ring, the remarkably precise workmanship of the screw threads. and the functional as well as practical magnetically lids ensure comfortable, effortles grinding without abrasion. Round rims prevent remnants get stuck and therefore durable functioning.