hand-toolstools
My grandfather called them "order clerk pliers" but can't find that name anywhere on the internet. The brand is Sargent but I can't find anything else about them. The "bolt cutter" like snip at the top is very powerful I've used them for cutting metal fencing, wires, all kinds of stuff.
It's called a pattress jig.
B&Q stock them in the UK. However they can only be purchased from a physical store not online, the ean code is 03619377 and the cost is £7.68. (A B&Q store can order one if needed based on the ean code.)
There is also a seller on eBay UK.
Looks like the tool used to clip animal nails. Even looks like it has a handy depth gauge, so you don't hit the vein in a dogs nail.
Best Answer
#1026 - Side Cutting Pliers - 3/8" Jaw Width
Sargent seems to still sell something like these, called Side Cutting Pliers. They also have a variant without the cutter, called parallel action pliers.