you come to my workshop......
you use my Wiss aviation snips, they are my loaners.
I used to use them for fish mouthing round tubing....it destroys them, cost of doing the job
aviation snips leave teeth marks and have a waste material side, real snips don't leave teeth marks or have a waste side
find a set of Wiss #7 snips for your basic straight cuts, you should get a pair for $10 on Ebay
then buy some 'duck bills' they turn RIGHT OR LEFT, same pair, no waste side either $10-$15 on Ebay
get the ones that are 12 3/4"- 13" long
Wiss ( I think it's #17)
Crescent (#412?)
Diamalloy
Blue Birds #212
even old Craftsman
ect.....
they will all do the job better than any pair of aviation snips
trust me you'll thank me
then you go looking for some custom made 'Pete' Petermans
will cut perfectly straight diagonally across a full sheet or turn left in the middle on a 1/8" radius

they're from the '30s
Pete charged $3 for a pair outright, $1.50 if you brought him a pair of 'duck bills'
you see a pair or 2 on Ebay every couple of years they are always over $600.....you might find an idiot that looks at the part number and thinks they are a pair of Blue Bird #212s like mine were made from
my Father and my Uncle started out making airplane seats and gas tanks in '27
I'm lucky I have my Father's and Uncle's snips
my Uncle's are Lempkes from Berlin..... they turn pretty well but not like my Father's with tool steel blades....I sent a pair to the master fabricator of the MV Agusta Motorcycle Forum, Lee Halverson....
4-5 days later the phone, rings it's Lee "where the Hell did you find these, they are God's gift to tin men"
"Lee, those are their version of duck bills, you should use the trick ones....."
"you have a pair?"
"of course, they were my Father's......I send you the cheap ones

"
"thanks Pal"
"you welcome, you old fart"
