Super Duty Straight Router Bit-Two Flute Woodworking Tool 9/16CD,2CL,4OL,1/2SH Straight Bits are the perfect choice: razor-sharp, double-fluted tools with all of the features and advantages that define quality sommerfeld products. Made of special high-strength steel, our straight bits can withstand even the heaviest work load and still give you a smooth, precise cut every time. They also provide exceptional chip ejection to allow cleaner and more constant cutting.