Sommerfeld V-Groove Rout Bit Woodworking Tool 90*CA,1/4CD,5/16CL,1-9/16OL,1/4SH V-Groove Bits will plunge cut a 90 V-groove. Used for cutting veins in door and drawer panels, chamfering edges, sign carving, and lettering. Also you can order the bearing and stop collar for template routing.