One more practical solution from CMT for making box joints and finger joints on a table saw easily and quickly. This set contains two identical 8″ carbide blades featuring 24 teeth, a 1/4″ kerf thickness and 5/8-inch bore, offering the distinctive advantage to produce 1/4-inch grooves by using only a single blade, but also to extend the groove to 3/8-Inch thickness by stacking the blades together with no setting and shims needed.