Description Gaugemaster GM633 Glass Fibre Pencil 4mm Details This 4mm glass fibre pencil has a fast abrasive action and is ideal for cleaning, burnishing, and polishing. This tool contains glass fibre, so extra care should be taken when handling. Glass fibre refills for this pen are GM634. This product is one of many tools in the Gaugemaster Tools range. Measurements Length 115mm Brush Width 4mm
