PRO-TECH CORE BOX BIT 5/8' X 1/4'SH KP804Core box router bit Carbide Tipped Pro Tech offer eight sizes core box router bits. These bits can be used in hard woods, soft woods, plastics and other composite materials. Our range of bits can be used with hand held, table mounted and CNC routers. Application is where a round bottom groove is desired. Using an edge guide, a core box router bit can cut coves. Other uses include: Reeding Fluiting Veining Grooving General ornamentation This router bit