With good milling, cutting performance, ensure high efficiency. The item is only used as industrial cutting/engraving tool. Cut decorative "V" grooves and lettering on signs with the "V" groove bit, using with an edge guide to chamfer and bevel edges. Double-edged cutting design, excellent concentricity. Suitable for materials: Acrylic, MDF, PVC, 3D engraving and chamfer, etc Sturdy solid metal, durable to use. 9 specifications for your choice.