For professional and industrial use. Six tube punch made with tubes 0,1,2,3,5 & 7. This punch is known as the best Revolving Punch made. The frame is made of forged steel, highly polished. Cutting tubes are turned from special carbon tool steel and threaded to allow easy replacement. These tubes are individually hardened. The reach or distance from the cutting tube to the back of the jaw is 1-1/2".