Home / Products by Category / Tools & Materials / Tools / Gaugemaster Glass Fibre Pencil 4mm Gaugemaster Glass Fibre Pencil 4mm £5.00 Gaugemaster Glass Fibre Pencil 4mm £5.00 Stock Status: In Stock GM633 Add to your Wish List Description 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. Attributes Brand: Gaugemaster Condition: New