Our 2 1/2" dimple die is the perfect metal fabrication tool for lightening and strengthening sheet metal panels, brackets and chassis, roll cage and suspension braces. Besides providing strength to the panel, dimple dies provide an awesome custom look! The dimple die is made from AISI 8620 Alloy Steel for strength and durability. The two and a half inch dimple die will flare chromoly steel up to .125" (1/8") thick. The material must be drilled out to 2.50" first before using the dimple die in a press to flare the edge of the hole.