Use an old car license plate for this. Better yet, a decorative one with your favorite brand logo or funny phrase.

when you spend 3 days setting up zero tolerance to make rough parts

I guess that only works with hole center of part

Wicked redious quick cutting

That's a Slot Drill, not an End Mill

Nice Trick! I will have to use that next time.

You need to then tighten the bolts, and run that same pass again. Also, A half a thousandth over 6 inches translates to one thousandth over 1 foot. That's not good enough. This entire process should take about 10 minutes.

10 "המורה של ישראל אתה," אמר ישוע, "והאם אינך מבין את הדברים האלה? 11 באמת אני אומר לכם, אנחנו מדברים על מה שאנחנו יודעים, ומעידים על מה שראינו, אבל עדיין אתם לא מקבלים את עדותנו. 12 דברתי אליכם על דברים ארציים ואתם לא

What are you using for scraper tips? HSS or carbide? Thanks and great video

Hi, I have a 312b-4 don't know what the 4 means .

Hi! You did not explain why the polish level drives you crazy :)

Thank you I never known files could be resharpened. My old files were used as wedges on the ends of my axes, that seem to last as long as a handle does rater then wooden wedges that crack and fall out.

Dear sir, I own a couple of files which have the name " FIRM " and a logo of a light house or something like that and a date 1857. Can you please let me know the manufacturer of these files. Thank you.

How is this “sharpening” anything?

Dale, that's not an End Mill you're trying to sharpen. It's called a Slot Drill.

Excellent video. I would like to ask your source for the premade lead screws and second, what type of flux and solder are you using? Just getting into my first machine and needs some love and care to get it back to better days. Best regards.

You where climb milling

wait... is this sharpening, or deglazing?

Thanks for sharing!

Had a cheap Chinese junk one. Sent it back the same day and got a Mitutoyo. So much smoother mechanism. Worth the money

In my experience, a quality file stays sharp a long time, what I have witnessed is a person, "back dragging" a file, at which point then the dulling occurs, DONT BACK DRAG your files, they are designed to cut in only 1 direction

Very interesting makes what I do in my fixit shop seem insignificant 👍👊

Based pre-emptive troll call out 😎

Ok I got it, clean out the groves 👍

if only it was this easy. forgot to mention every turn tightening it down throws it out of alignment as well XD have to keep realigning it every few turns.

God, Americans love the sound of their own voice. Blah blah blah!

I don't understand how a mild acid can sharpen a file?????

You just saved me hours on aligning the vice on my first milling machine.

Excellent video, unnecessary music

Is it possible to scrape cast aluminum?

That draw thing sounds like the quickest way to blunt your files

How many times will this work roughly

Thanks for sharing your knowledge. Very smart approach.

شغل زين واصل يابطل

I hate whoever edited your video. The transitions are in between you saying something without you finishing your sentence. I keep seeing this in other workshop videos or things like workshop tip videos. It is so distracting that I won't finish your video.

Ive not tried this yet but will. What I would really like to know is how to stop your files rusting just from normal handling, I can only image this problem will be even worse with H2SO4 floating around

I can’t watch this video, my attention span is getting too short

The 1992 page has an add for building a Wow! 20Mhz 386SX home computer... And, as another commenter points out, don't use sulfuric acid to recover files...

Do as you aughta, pour acid in watta. Pouring water into acid will cause a violent splash back

Very nice work sir

I use straight cleaning vinegar to do the same thing.

Very interesting. Nice work sir

A good use for old files is to cut them into 2 down the length with a cut-off grinder and weld the strips to the leading edge of you mower blades. They hold a sharp edge for a long time.

How to lose a finger 101

I guess should have been 'how to clean files' ?????

Sorry to be picky, but you're not really sharpening it you're cleaning it albeit very well. The sulphuric acid will not only eat any rust on the file, which is good, but will take some of the metal to become iron sulphate. That will erode the edges of the individual teeth and on a very small scale, dull them. But, in fairness, you've taken a fairly useless file and got it back usable again which is great.

Best thing is to buy top quality files at the outset. Vallorbe and (P Stubs if they're still made). I've used lots of Indian-made files and they don't stay sharp very long.

This is not sharpening a metal file rather than deep clean her. A dirty dull file will become after deep cleaning a clean dull file. You can't sharpen a dull knife by just dipping it in acid either. It is what it is

Yep… I got one.. didn’t expect the performance that it gives…but it keeps reading as accurate as my quality ones.. can’t complain

So it has high points and low points, but it’s flat? Yeah idk pal seems like old head bullshit