i think i am going to try buying a metal blade for my circular saw
hoping for the best

 

Uhh I would still vote using the reciprocal saw (Sawzall) over the circular, it just has a lot more versatility than the circular and less chance of binding which fucks up the blade, the cut and the saw motor.

 

i don't know if its just me but i can never manage to cut straight with a sawzall it always comes out "half ass"

 

Thats because you don't use the guard the way you are supposed to

 

practice makes perfect. It takes a little while to learn some of the tricks, especially if you ever see a hvac guy using one to cut in boots.

 

Also you have to understand that in construction there is a certain amount of slop to play with. I have yet to see a square room with straight walls just as example

 

Dude, before you kill yourself, you need to know what kind of metal you're going to cut. Circular saws are made mostly for wood, but if you get a blade for non ferrous metals, you cut cut aluminum with it, and I wouldn't cut anything thicker than 1/8"

If you're trying to cut some light steel, you need a chop saw with cut off wheel type of blade, or you could do it with a grinder.

If you're trying to cut heavier steel tubes, or stainless, you need either a sawzall or a bandsaw. You could also cut them with a grinder, but you will burn the finish badly.

They also have something called plazma cutters, but its probably out of your price range.

In any case, no matter what you cut, dont do it with a wrong blade.

 

sawzall isnt exactly made for precision cuts. You want precision, get a stationary band saw, or better yet a water jet.

 

notice he said he's doing electrical work, how many electricians carry around a water jet machine.

 

Just put a metal cutting blade in a jig saw...or use a plumber's pipe cutter.