Description The Grenade pencil sharpener is a brass single-hole pencil sharpener in an unusual half-barrel design. It is precision-made of milled brass, with a knurled grip zone, and raw machined surface. This M+R Grenade pencil sharper is suitable for round, hexagonal and triangular profile pencils.The trademark of Mobius and Ruppert sharpeners is quality. They produce all the pencil sharpener blades themselves in Erlangen, Germany and the sharpeners are suited for every type of wood and pen - reliable and clean. A special corrosion protection guarantees a long life expectancy.Very popular with design professionals and artists, the M and B brass sharpeners represent a "heavy" alternative for individualists. Built for heavy-duty use, these brass pencil sharpeners from Mobius & Ruppert are virtually unbreakable.