You should choose manual shearing machine if the thickness of metal is 2.5 mm below.even though you need to work by your foot but this machine is very cheap and convenient. it is rather easy to study too.we attached the picture of this manual style for your reference.

What is material of this machine?

yes, very good question, this machine is made of iron.that is why it is so cheap.of course, do not worry about this,the machine will not break unless the blade is blunt

How is the weight and color?

about 300 kg.it still has to use vessel to ship,as to color,you can choose by yourself,please kindly note that we have used anti-rust to protect this tool.