Sommerfeld V-Groove Rout Bit Woodworking Tool 90*CA, 5/8CD,1/2CL,,1-3/4CL,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.