Cutting a piece of tin directly down the middle. So you have left, right and straight tin snips. Left is for doing cuts to the left, right for curving to the right, to cut a straight line you use the straight ones. But they are only designed to cut at the very edge as the left over material curls dramatically when sheered, though there is no way to cut a large peice of currogated tin down the centre without everything going crooked.
>>2981386Electric shears. I assume you're working on a roof?
>>2981400Yes trying to cut a peice of tin down the centre, if the principle is the same for hand sheers, it should also work just be harder, i cant buy electric sheers for one job
>>2981386Angle grinder with a cutoff wheel works great. Loud as dicks though, don't forget your earpro
>>2981408That causes rust, i would of done that already
>>2981410LolwutEither way you're exposing metal
>>2981411The angle grinder causes a burred edge which rusts, the shears do a smooth cut
>>2981412So you go back over the cut with a finer grindwheel and smooth it out? This is what trim/flashing/brakes are for.
>>2981411Grinder will melt off any coating in the HAZ, leaving a strip of rust. Just fine for a barn or shed, but would look like crap on a house. You can do it with a pair of right or left shears. It'll just take time and patience, and you'll have to bend the other edge out of the way. The off cut will be trash when you're done. Lap whatever you cut under the factory edge.The correct tool to use is a nibbler, or the electric shears
>>2981386Planish it flat again.
>>2981386Malco Andy snips are what I use for long cuts, midwest has some nice pelicans as well. hand tools always require a bit more care when cutting but Ive had good success with my andy's
>>2981386>though there is no way to cut a large peice of currogated tin down the centre without everything going crooked.right tool for the right job
>>2981386Use shears with offset
>>2981386Another option than what has been already mentioned is this adapter to punch through sheet of metal. Mounted either on a drill or an impact driver, depending on the mounting shaft. Should not cost more than 25 bucks. The width of the cut line is around 5mm and it produces hundreads of C-shaped metal splinters, so be ready for a bit of sweeping. The good thing is you can cut any shapes with it, depending how handy you are. Once you cut it, you will need to use another tool to smoothen the edges.
>>2982674Not OP general question, I understand the difference between nibblers and shears, but how do they compare to this kind of cutter?Do these things even have a name, all the listings call them "nibblers" but they're obviously a different tool?
