Which tool to create 7" hole in metal shed wall?

sinesprockett

Is rented shed, large size. Want to put in flue through highest pt in Gable end wall, not the roof as has plastic insulation and more complicated.
7" hole or could perhaps do 2 horizontal slices, 7" apart from an overlap in the vertical metal wall and bend back into a square hole.
Any suggestions of what tool I could use? Do not want to start dismantling sections of shed. If could do in situ, would make life so much easier.

jimf

could you not drill a pilot hole 13mm and then cut it out with a jigsaw

foxy farmer

Sheet metal nibbler. Drill attachment or independent machine. I have used a drill powered version on 0.6mm corrugated sheeting and it was a godsend. Hire shops would probably have 110v version. They'll cut any shape and curves with fairly small radii. Just drill a hole big enough to let the cutting head through and cut away.

sinesprockett

Thanks JimF, a hand held jigsaw sounds good, hopefully not too awkward over the corrugated parts.

sinesprockett

Thanks a lot Foxy Farmer, would be very handy to get an attachment for my own drill, rather than having to buy etc new tool.
Appreciate the photos too, have a better idea of what am looking for

Calahonda52

rented shed, LL consent?