worth 80quid?

[normspanners]

got to be worth £80 after all, There a lot of work gone into hammering those chisel ends to that degree.

 

[brightspark]

oops, I meant to say blunt files.

the way to do it is if its not 2 badly worn and its a quality file . clean it up and dip it in battery acid for about 5 hours , take it out wash it thouroughly and spray with wd 40 it will cut nearly as good as a new one . i did a post on it and a few before and after pictures a few years ago as some people wasnt having it that it worked heres the post http://www.mig-welding.co.uk/forum/threads/sharpening-files.20463/

 

[Maker]

Wow, I had never considered there could be a chemical method, I thought you were going to me telling me I need a special type of surface grinder with special discs. What type of acid is in batteries?

 

[Bill Edwards]

Sulfuric.

 

[Maker]

Does anywhere sell battery acid or should I look on eBay for H2SO4?

 

[brightspark]

get it out of old car battery if u know anyone with any