The DEWALT DCS3501 Replacement Cutting Die Set is made from hardened steel for increased cutter life. These will allow you to cut 1/4", 3/8", & 1/2" Mild Steel coarse threaded rod, along with 1/4", 3/8" Stainless Steel coarse threaded rod. Laser etched markings allow you to quickly identify cutter sizes. Includes: Upper & Lower Cutting Die, Upper & Lower Set Screws.