Ran across this and thought it might be of some use, if no one has seen it before.
http://www.dickblick.com/products/tube-wringer/
Paul
Tube wringer works well for those of us who are more then a bit "tight" with their money. I have one in the big shop to get the last drop of adhesive out when fabricating solid surface countertops. It would work for the larger scales as the teeth are fairly far apart. I'm still looking for something which will work in 1:48 scale.
Maybe you could make one from pinion wire?
http://www.amazon.com/Boston-Gear-Pinion-Degree-Pressure/dp/B007NO72WU/ref=sr_1_sc_11?ie=UTF8&qid=1413133132&sr=8-11-spell&keywords=pinion+wore
Prob a cheaper source for it, but this was easy to find.
Paul
The Dick Blick item also is available at Michael's craft stores. It make corrugations mostly suitable for the scales around 1:24.
How would we use the pinion things, especially if we have poor metalworking skills?
Russ
I use KS Metals 1/48th scale corrugated sheet (Aluminium) even though I work in 1/35th scale. Lawton Manor - I don't know if you are UK based but it is obtainable from Metalsmith.co.uk (£7.50 a pack). Can be "etched" with Ferric Chloride for good rusting/weathering effects.
Les
I used a Fiskar Crimping tool to make the corrugated roofing here in 1:24
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fimages58.fotki.com%2Fv510%2Fphotos%2F2%2F1709102%2F9802361%2F11Oct2011-vi.jpg&hash=b9736942ec7e2da6da38cd37423d43f7746f4a9a)
To use the pinion wire you pretty much would need some machine tools. Basically you would just make a version of the crimper but using the finer pitch pinion wire. You do do it with hand methods, like a hand drill but you would need to get the holes in the ends pretty close to center.
Paul
Here is my high tech method for stamping corrugated sheeting from aluminum (Aluminium for you brits ;) )"beverage" cans:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi877.photobucket.com%2Falbums%2Fab338%2FJaggedSteel1%2F005aluminumcan_zps9dedaa01.jpg&hash=5155c6957f64996d8c699f5ffc21dd67101f27c7)
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi877.photobucket.com%2Falbums%2Fab338%2FJaggedSteel1%2FMRR%2FCancut_zps0bac0962.jpg&hash=a558d96075602c0e7e8514ab764cf5230bcf90de)
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi877.photobucket.com%2Falbums%2Fab338%2FJaggedSteel1%2FMRR%2FHitechclamp_zps3b21619f.jpg&hash=da9ad9f60f08de54ebb9c05fc28e396ff40b0b89)
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi877.photobucket.com%2Falbums%2Fab338%2FJaggedSteel1%2FMRR%2FElPerfecto_zps4a6329d7.jpg&hash=e44655b6463bf9adec25e70f2746513221536d68)
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi877.photobucket.com%2Falbums%2Fab338%2FJaggedSteel1%2FMRR%2F2cansworth_zps6e9d35dd.jpg&hash=f636ab087cc9ef30d51239d06d5e1e620645d249)
The stamping process goes real well with producing more raw material. ;D Playing "Powerhouse" from the Looney tunes cartoons (http://www.youtube.com/watch?v=N9-7uLg-DZU) really sets the mood. :D I have been using this for 1:48 and it looks good for my purposes, although at 6" per corrugation it is like industrial corrugated for that scale.