Filing handsaws

[Con]

I've received a triangular shaped file, either as a freebie or by mistake. Has anyone ever used one? Is it worth it? Or shall I find another use for it? Thanks

[Bob The Dog]

Used them a fair bit to sharpen tenon and hand saws. Still use it on the tenon saw but most handsaws I use are hardpoint now and no good for sharpening. If you’re going to sharpen a handsaw, it’s worth getting a tooth kerf setting tool too, as they tend to lose kerf width over time, leading to the blade binding. 

[Deafhead]

1 hour ago, Con said:

I've received a triangular shaped file, either as a freebie or by mistake. Has anyone ever used one? Is it worth it? Or shall I find another use for it? Thanks

I never thought we would come to a time when someone would ask what a saw file was for, but I did do my apprenticeship in 1953.

[Pete Mctree]

You use a feather file to sharpen handsaws. 
if the saw blade is impulse hardened you can’t do it, as the teeth are tempered as part of the finishing process - check before you try otherwise you will kill your file with zero results 

[Tree monkey 1682]

1 hour ago, Con said:

I've received a triangular shaped file, either as a freebie or by mistake. Has anyone ever used one? Is it worth it? Or shall I find another use for it? Thanks

Handsaws buddy, but then you need to learn how to 'set' a saw also if your careful you might be able to touch up bandsaw blades