1. It is suitable for punching holes on iron sheet, copper sheet and aluminum busbar. 2. Punch dies are made of high carbon steel. ITEM OUTPUT (Ton) WORKING RANGE MAX. THICKNESS (mm) STANDARD DIES QTY PER INNER PKG/ OUT PKG PACKING PACKING SIZE (CM) WEIGHT (KG) /UNIT CH-60 31 APERTURE Φ 3/8" -Φ 3/4" Iron sheet 6mm, copper sheet 10mmΦ 3/8" , Φ 1/2" , Φ 5/8" , Φ 3/4" 1/1 PLYWOOD CASE 40*25*15 21.5 CH-70 35 APERTURE Φ 3/8" -Φ 3/4" Iron sheet 8mm, copper sheet 12mmΦ 3/8" , Φ 1/2" , Φ 5/8" , Φ 3/4" 1/1 PLYWOOD CASE 33*20*39 37.5