This Single Station Die punches An Aluminum Awning Bracket mounting holes in ONE HIT. Wall thicknesses are 3/8" top and 187" below. Four large holes are punched SIMULTANEOUSLY via side activate CAMS left and right. Top holes are .500" X .750" elongated holes through .375" thick aluminum times two. Side holes are .250" through .187" thick aluminum. In the middle of the die is a Slide Bar utilized to unload each part after punching. Die required a 45 ton OBI Press to successfully punch each part. Call RS Tool Inc. today to see if we can quote you a single hit die for your high production needs.