Hand Held Power Punch, Sheet Metal Hole Punch Kit Punch holes in thin sheet steel, aluminum, and brass. Powerful, lightweight tool punches mild steel as thick as 16 gauge. Includes:3/32",1/8", 5/32",3/16, 7/32, 1/4", 9/32", punch and dies plus handy storage case. Tool dimensions : 8-1/2" Long x 4" Wide Handle 6-1/2" Long Grip 3-3/4" long Die material: high carbon steel.Zinc plated die finish Lower die threads : 1.75mm