This series has a small chipbreaker therefore the quality of cut will improve. It will leave a smaller striated finish. For massive wood only., #46238, direction down-cut,(D) diameter 3/4, (b) Cutting height 2-1/4, (D) shank 3/4, overall length (L) 4, flutes 3, 46238 CNC solid carbide spiral flute roughing/finishing with chipbreaker 3/4 dia x 2-1/4 x 3/4 shank down-cut router bit