18-Pc Signmaking Advanced CNC Router Bit Collection The ultimate set for signmakers. Designed for creating signs and other CNC projects in a variety of materials. For the most demanding signmaking lettering and engraving tasks. Each router bit is manufactured from Amana's exclusive grade carbide according to stringent quality standards. Designed for cutting: Aluminum Brass Bronze Copper Carbon Fiber Laminate MDF Melamine Plastic/Acrylic Solid Surface Wood Veneered Plywood Stored in a solid wood showcase storage box with a Plexiglas® clear lid.See below for set contents. Wood Storage Box Dimensions 24-1/2" L x 6-1/2" W x 3" H Warning: While RC-45910 is used on a CNC machine do not route deeper than the 1/2” cut length ball bearing cannot touch the material.