There's been a few threads on chainsaw files - which is the best which lasts longest etc so I'd like to do a blind chainsaw file test to see which one proves itself in the field.   It would work like this:     Got to Products for the category: Round files and buy a single file of a size that you use the most out of 5/32" (4mm), 3/16" (4.8mm) or 7/32" (5.5mm). Just a single file any brand. On checkout put in 'freepost' as the voucher code. Checkout and pay for this file. You will the