Turning a Rusty FILE into Shiny but razor Sharp KNIFE

This 8 minute video can inspire you to make some useful knives out of trash or rusty items. Even you can make such a beautiful knife at home with very household machines like angle grinder and drill machine.
Turning a Rusty FILE into Shiny but razor Sharp KNIFE
#rustyFILE
#intoKNIFE
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Thanks for watching the video and giving the 8 minutes of your worthy time.

[@Steelcraft1]

Good job..will try doin one😀👍

[@dahliyaaa2689]

Prisoners: *Watching this video* Prison guards: Oh hell no! Prioners: -Sad- Video creator: bruh, w*f was that-

[@Max-cg2pw]

very good knife

[@tuduong3868]

Beauty with beauty

[@m.d.customs3751]

This is the same as random hands lol good work though

[@hamedalhmdi]

Good 👍🏻👍🏻💖🌹🌹🌹

[@lightvelly8303]

Thanks to sharing. I like this

[@SVDIVYA]

Wow keren banget pisau nya om mantap juga

[@akafrosty6175]

Not sure about the hook on the end but still a good looking knife.

[@itssomeone8244]

It is nice bro

[@mustaphachabrag6872]

Good job bro 👍

[@juleksuska4918]

Awesome work my dude keep it up

[@dankboi6128]

Good job keep up the good work!

[@tacocat1557]

Wow nice piece of work bro keep up the good work

[@asimkerimov2860]

👍🇦🇿

[@tiagocisneros218]

Wow the is perfect i like

[@xaveer5114]

congrats your the first one to comment

[@tiagocisneros218]

great

[@MrMikew7808]

Perhaps a little more sharpening. Very good job

[@shreedhamvrindavansdv6651]

Awesome......

[@Moryak92]

В России этот нож считался бы холодным оружием((

[@ismailpatel2233]

Everything is ok just handle dont you think its a bit too round small diameters of hanle is too small and round so to control the edge of the knife since its realy sharp it must have bigger and lighter handle

[@prodbybabygod7411]

Quick ask as a newbie but the heating at the start was to “untemper” it ?!?!

[@leor2830]

A file is hardened upwards of 50HRC,, it is quite hard. The operation at the start was to back temper in , it was basically annealed ( only as hard as the steel's chemical composition) He then proceeds to remove metal whilst still in the "soft" sate, and, then he re-hardens it ( raises the steel above approx 850C and quench in oil. However,, he continues to make the knife with the material still in the "as sequenced hardness ( at a guess approx 60 HRC ) . What I don't see him do is to temper the "knife" to a reduced hardness - heat to about 250 - 300C and allow to slow cool in oven / furnace. Because of all of thesis, the knife is very brittle, and, the edge will chip ( if not entirely break / crack ) if subjected to any impact - like chopping at wood / bone . Hope this helps

[@prodbybabygod7411]

Leo R helps heaps cheers 👌

[@metalhurts1635]

That was Normalizing process for steel.

[@leor2830]

@@metalhurts1635Whilst I am not a metallurgist ( but only a "humble" Mechanical Engineer ), Normalising process is when the item is slow cooled OUTSIDE the furnace in still air ( to refine the grin structure ). In the video, it is allowed to cool INSIDE the furnace ( whilst it still has latent heat ) - this is annealing and it serves to soften the material back to it's "as rolled" condition.

[@jawwadalhoque1573]

Not perfect but ok

[@sohailkhan0346]

random hands

[@lukequidoramire1380]

Wait this is random hands right?

[@silentghost82]

No I think he is stealing his videos from random hands

[@alexko6808]

Albert Galarga thats a good explanation

[@leor2830]

I gave you a thumbs down because ( like in the other video I saw) , you do not show the knife being tempered after hardening it - the materiel is still in the as quenched hardness and subject to brittle failure.