[RE-wrenches] Hydraulic KO tool

[Jay]

I’m wondering if anyone has recommendations for an inexpensive hydraulic KO tool. 

I have a project where I need to punch some 4” holes in gutter. 
I can’t get a jig saw or anything in there and a 4” hole saw bit is crazy expensive. 

There are many inexpensive hydraulic tools out there that should work for a holes. Just thought I’d check to see if anyone has any suggestions. 

Thx

Jay