Amana 45728 Carbide Tipped V-Groove 90 Deg x 1-1/2 Dia x 1-1/4 Inch x 1/2 ShankAngle (a) 90 Diameter (D) 1 1 2 Cutting Height (B) 1 1 4 B1 3 4 Shank (d) 1 2 Overall Length (L) 2 3 4 Flutes 2 Cut decorative V Grooves and lettering on signs with these V Groove bits. Use with an edge guide to chamfer and bevel edges. Can be used with handheld, table mounted and CNC routers. Excellent for cutting: 20lbs High Density Urethane Acrylic Composites Composite Decking Foam Laminate MDF HDF Melamine Plywood PVC Plastic Sign Board Solid