The Radius Jig is capable of cutting constant radii from 6 to 16 inches, both concave and convex, as well as convex conical radii. That means it can cut sanding blocks, clamping cauls, and 'compound radius' fingerboards. Sanding blocks can be cut up to a finished length of 14", while fingerboards can be cut up to 28", enough for even an extra-long scale bass.