For tight radius work in thin materials 3/32" to 1/2" wood veneer, wood, bone, fiber, plastic, etc. Smooth finish.Skip tooth blades are available in more sizes than any other type Olson scroll saw blade. There is a complete range available from the New FR400 (#3/0) size for the finest of cutting to the FR410 for coarser sawing of thicker materials. For hand or machine sawing of wood, plastic and fibrous materials. Skip tooth blades cut fast, provide good chip clearance and smooth finishes.