These spare blades are made for Stockmar Sharpeners. The Stockmar sharpener is suitable for safe sharpening both thick and thin (colour) pencils with a triangular or hexagonal shape. The metal grinder, for extra strength, is recessed into the lid and is completely sealable. The metal grinder includes two steel blades designed exclusively for STOCKMAR. The honeycomb-shaped tray is manufactured from FSC certified lime wood. The steel blades are very easy to change by means of an easily accessible screw.

Stockmar sharpeners are suited for thin and thick (colour) pencils with a maximum diameter of 11 mm.