Check the listing for details. WESTWARD 16Y545 Straight Cut Profile Router Bit,3/8" 16Y545. Condition: New. Listed at 14.23 USD. Straight Cut Profile Router Bit, Carbide Tipped, 3/8 in Cutter Dia., Fractional Inch, 1 in, 2 5/8 in, 1/2 in Straight profile router bits can create straight grooves, dados, and slots in a surface. They are used to hollow out areas in a workpiece. These router bits have an open-flute design that provides efficient chip clearance in applications with high feed rates.Profile router bits create a decorative edge on a workpiece. They attach to a compatible router and are moved along the outside edge to make a contoured cut. Profile router bits are used in woodworking and light manufacturing.