Each product within the Milwaukee kNckout system was built upon the principles of reducing the tedious steps of hole making, improving the speed of the process, and limiting the fatigue of the user. The M18 Force Logic 10 ton kNckout tool is powerful eNugh to punch up to 4 in. holes in 10 gauge mild steel, and 12 gauge stainless steel. The quick connect alignment system both delivers easy set-up without the tool, and speeds up repetitive punching. EXACT punches and dies are rated for both mild and stainless steel punching. Plus, EXACT dies have both engraved cross hairs for accurate alignment, and slug removal ports for optimal slug removal. Together, Milwaukee's kNckout system truly is the easiest way to punch!