Tork Craft Router Bit — Long-Blade Straight ½″ × 1-½″ Extra reach for deep, clean cuts. This long-blade straight bit pairs a ½″ (12.7 mm) cutting diameter with an extended 1-½″ (38.1 mm) cutting length, ideal for deep dados, mortises, recesses, and trimming thicker stock with flat bottoms and square walls.