How to remove scratches or engravings from a Swiss Army Knife blade with just sandpaper

Is it possible to remove deep scratches or  engravings on a Swiss Army Knife blade by   hand with just sandpaper?? In this  video I will show you my technique   and I give you tips and tricks for  achieve the best possible result. Hello YouTube. Welcome to another Workshop  video. In this serie I show you maintenance   and customization tricks for your Swiss Army  Knife. Restoring old mechanical things has   always fascinating me. I like to buy old knives  on flea markets on online marketing platforms or   everywhere else for a little money and restoring  them as good as possible. The problem is often,   these knives are totally worn out. They were  regrinded with belt grinders or bench grinders and   and they have hundred scratches and sometimes they  have also engravings which you want to remove.   And yes.. with a little bit patience, a little  bit time and a little bit talent in manual work,   it's often possible to fix these problems. All you  need are sandpapers in different grits and if you   have a drilling machine with the polishing  wheel this is for sure not a disadvantage.   So let me tell you my first thoughts about  removing scratches and Engravings with sandpaper.   One of the basic questions is for  sure: should I grind wet or dry.   Sandpaper which is suitable to  sand wet has often such a sign. As long as you grind by hand, in my opinion it  doesn't really matter if you work wet or dry.   Especially if you work on rough  sandpapers up to 400 grit. If you work wet you have for sure a little  bit more mess and I have the feeling that the   grain breaks out quicker. If you work dry, the  sand paper will last longer... in my opinion.   Sanding wet with water or oil makes sense on the  finest sandpaper you use. Because of the resulting   abrasive paste the surface of your work piece  can become finer. But in my case I don't sand   wet at all, because I have the option to go on a  polishing wheel after the finest sandpaper. If the   scratches you want to remove are not that deep I  would start with 240 or 400 grit sandpaper. But if   you want to remove deep scratches or engravings  I would start with about 120 grit. In the first   step I sand on the coarsest the sandpaper as long  as the scratches or the engravings are almost   completely removed. That's why the first grinding  station takes always by far the most time. Don't hesitate to take a new piece of sandpaper if  you realize that the aggressivity of the sandpaper   is significantly reduced. Such a little corner of  sandpaper costs almost nothing and you can save a   lot of time and the energy. I would recommend  to work with the finest grade of sandpapers   you have. Because after the first step the goal  is always to remove the scratch marks from the   courser sandpaper with the finer sandpaper. If the  step between is too big you will have a problem.   Here a little tip, especially for beginners.  If you want to have the control if you have   totally removed scratch marks from the previous  sandpaper, you can grind in different directions.   As long you can see a cross pattern you  have to continue the work on this grit. If you grind in this direction...  with the 240 grid for example...   I would recommend to grind in  this direction with the 400 Grit.   As soon the scratches looks in one  direction you can change to a higher grit. After practicing these steps a  few times you get a good feeling,   when you can change to the next finer sandpaper.  Then you don't need this trick anymore.   Now I want to show you the technique  which works the best for me.   I like to cut small pieces of the different  grits and stick the Sandpaper directly on the   table with weak adhesive spray. I do it like  this that the piece of sandpapers are flush   with the edge of the table. This allows me  to easy grind all the way up to the ricasso. Now I put three fingers on the surface of the  blade. They can control the pressure very well.   The other hand is on the handle.  In my opinion this method is also   very safe because the edge of the knife  don't move in relation to your fingers.   Anyway I would recommend to  sharpen the knife after this work.   So now I try to remove the engraving and  the scratches from this old Wenger knife. Just a little tip at the end. If  you don't have a buffing wheel   you can also use a rag and normal  chrome polish for the kitchen... It works fantastic for the  finish. Look at this.... wow!! Now it's time to take out your old  knives. Try out this technique,   you will see that works fantastic. So  that's it for today, thanks a lot for   watching. Don't forget to subscribe to my  channel and see you next Friday. Ciao !!

Channel: Felix Immler

Views: 131,291

Keywords: polish the scale, refurbishment the scales, new SAK scales, restore your old knife, Griffschale polieren, Felix Immler, Felix, Immler, Victorinox, Tips & Tricks, schnitzen, Bushcraft, Survival, Outdoor, Pfadfinder, scout, pocket knife, swiss army knife, swiss army knife hack, outdoor kochen, How to, hack, customice, customisation, pimp, modification, modify, Schalen erneuern, restore old scales, polish, polish scratched handles

Id: je7N1kbLha4

Length: 10min 25sec (625 seconds)

Published: Fri Mar 31 2023