1/2 in. x 2 in. Ratchet Knockout SetEXACT punches and dies provide innovative features that bring value for the contractor. The Heavy Duty accessories can punch holes in both mild and stainless steel material. Laser engraved crosshairs on the dies deliver the clearest alignment with pre drawn crosshairs. Both the tooth geometry of the punches, and slug removal ports on the dies, provide optimal slug removal. Large size ID markings permit easy punch and die selection. EXACT punches and