Hand File Question

[st@rk]

Perhaps an obvious one, but with my brand new hand files you always get a satisfying cutting noise as you use them (on metal), however some have started to squeak as you use them; is this the sign that they're blunt or that the metal I'm filing is too hard for them?

Thanks for any help!

 

[M6erfan]

What brand files? Have you tried cleaning them? If not Google "file cleaner"

 

[Wamsutta]

Mine never squeak because I always push them.

 

[four.cycle]

^ this.

are you using the file correctly?

 

[Chucktin]

I always get a squeal if the the piece I'm working on can vibrate. That just means I need to secure it better. Usually deeper in the vise.

 

[rlitman]

I always get a squeal if the the piece I'm working on can vibrate. That just means I need to secure it better. Usually deeper in the vise.

Yep, this. It also has to do with the way you work the file. If you're pushing it across the end of something thin, you've got to clamp it really close, or just change the direction you're working.

Squeaking is vibration. i.e. wasted work. Don't just put on earmuffs and keep going. It's not good for your file.

 

[Chucktin]

Relitman has it right.
Sidebar - if you want to sharpen a file you could try a sulferic acid dip. I tried it, didn't like it. In any case be careful! Acids are not something to be casual with!

 

[HenryAZ]

Chalk up your files before use and you will be able to avoid cleaning them so often. Chalk keeps metal filings from embedding in the grooves.

 

[st@rk]

Thanks everyone - I am using the file correctly; the job was on site / away from the workshop and I had to file the part in its assembly without dismantling but it was held solid in position. I didn't realise the noise was related to vibration but that makes sense - going to try the chalk trick though!

 

[rlitman]

...the job was on site / away from the workshop and I had to file the part in its assembly without dismantling...

Yeah, that happens. Even in a tight spot, you may have options though. For one thing, files (like planes) work best when moved at a skew angle. So, you might get better results angling the file from the direction you plan to drive it.

And when things get too tight to make it work, there's always the Dremel option.