150 mm copper hole punching tool.
CH-70
Punching force 35T
Depth of throat 4.5"(115mm)
Aperture(4 pairs) 3/8"(ф10.5mm)
1/2"(ф13.8mm)
5/8"(ф17.5mm),
3/4"(ф20.5mm)
Max. Thickness of iron plate 0.39"(10mm)
Max. Thickness of copper bar 0.47"(12mm)
Weight 77LB(35KG)
It is split hole puncher. It is used for punching for metal plate. It is popular in electricity industry, construction,etc. It need to work with a pump. It could punch 3/8"(ф10.5mm), 1/2"(ф13.8mm), 5/8"(ф17.5mm), 3/4"(ф20.5mm).