nikh;
skip the curved jaw Wiss snips that was ~the 1st attempt to make tin snips that turn
get a pair of Wiss Aircraft Snips.....leave them in plain sight people will be cutting wire with them get, a pair of the "off set" ones too
the only thing i use Wiss Aircraft Snips for is fish mouthing tubing while making tube frames......they last 8-10 weeks
go on ebay and get a pair of "duckbills" 12"-13"
Blue Birds
Crescents
Pextos
Wiss'
etc
clean them up, touch the edges up.....sharpen them perpendicular to the edge you need some 'tooth' to the cutting edge
then hide them
i have my Father's Pete Peterman modified duckbills from the '30s....when i worked in Switzerland building racing bikes i had them in my tool box.....with a padlock through the handles
what looked like a pair came up on ebay ~8 months ago $649 BIN
mine will cut perfectly straight diagonally through a 4' x 8' sheet then stop in the middle and do a 1/8" radius left turn!!!!
try that with any other tin snips made
i have my Father's French tin snips from '28 with tool steel blades that will cut LEFT or RIGHT 1/4" radius.....they're way better than my Uncles '27 Lembkes from Berlin
my Father and Uncle were the tin Wizards......in the '20s and '30s
a sample, in the Smithsonian;
http://airandspace.si.edu/webimages/highres/80-2100h.jpg
the wing root and empennage are made of 1 piece of metal it wraps all the way around
NO, filing, grinding or sanding allowed by Jack Northrup....you roll it to fit....try that on an English wheel
this is not the original configuration of the plane, i have the flight test picture of the plane and know who is flying it, the Smithsonian doesn't know
i have pictures of every iteration of the plane
it i also missing its ID tang and the fuel tanks that my Father built
i have a blank ID tag and a request for the tag from TWA......they wouldn't give my Father a pass to go back and make new tanks for them for free.....
he hands me the letter and the ID tag "you decide what to do"
"screw them, I'll keep it"
"OK, I like that"
when I croak.....my Sister's instructions are "send this to the EAA, with the restriction it will never go to the Smithsonian"