Cut individual flutes - shallow, small-radius grooves - in narrow edges without having to balance a router on that Edge. The bit cuts at right angles to the bit axis. Flute depth is controlled by the pilot bearing, the flute's position by the router's bit-height setting. Use in a handheld or table-mounted router, #54330, diameter (D) 3/4, radius (r) 1/8, cutting height (B) 1/4, shank (D) 1/4, overall length (L) 2-1/4, replacement collar 47724, replacement bearing 47701, 47706, flutes 2, C 1/8, 54330 carbide Tipped edge Fluting assembly 1/8 radius x 3/4 dia x 1/4 x 1/4 inch shank