Sanding block of 450 mm Long and 12" radius. High-quality block, very comfortable to use, high accuracy, and also perfect as clamping caul for fret jobs 16 Radius Sanding Block Aluminum Fingerboard Radius Sanding Blocks - Double Sided - Guitar Templates Guitar Fret Leveling Block High-quality aluminium sanding blocks for fret leveling and fingerboard shaping. Ideal for guitar and bass luthiers. Durable two-way radius sanding block... Sanding block of 450 mm Long and 16” radius. Hi, Do you know maybe where in EU I can buy some radius sanding beams ? I have found Guitar and Woods brand, but I am curious that are there any alternatives High quality block, very comfortable to use, high accuracy, and also perfect as clamping caul for fret jobs., Long: 450 mm , Width: 70mm , Thickness: 30mm.