Yes seems simple,,yet from the replies you got you can see the "confusion"!
First as stated previously the DIN scale IS the standard for all bindings all over the world. It is not a German standard,,but was initiated by the German ski federation and supported by the German industrial standard board and then accepted by all ski federations, companies!
The "nuance" in setting this DIN is that the "gradients" or steps from various bindings varies. Let me explain. Some bindings need three turns to get to point A,,while others need five turns! Also the indications vary. Yes all have scales but some have lines, some triangles, some colors etc,,,
What most skiers do not appreciate is the "other" indication. The rear tension pressure indicator! It is crucial ,,,no essential for that DIN value to work!
Not enough rear pressure,,,,you will fly like the birds into the woods!
Too much rear pressure,,,,,sorry even if you have low low DIN value of 4! You will need a value of 10 to release!!!
Seems simple,,,but you can now appreciate the "issues"!
The most damaging and dangerous comment was in reference to drilling holes! All shop drill bits have a standard drill bit with a set depth ! If you use any drill bit two problems might arise!
You have a too wide bit so screws will not fit correctly into hole! For Americans,,,,the rest of the world is using metric drill bits,,,,thus an "American" drill bit will be "off" ,,,,,if taken from an American tool rack (that is not metric)!
Also you have no idea what depth to drill,,trust me chance are you will touch the ski base or even have a nice hole at the base!
Now for the major reason you should not do this unless you know a little about ski performance and your needs!
You will note , if you read the posts in this site and other "intelligent ski sites" that the placement of the binding in reference to the ski is crucial! There is a debate going on now about what ski companies "recommend" and that famous "reference point" for the boot/ski mating! I really do not want to start a debate about issue here, however this placement is vital to getting greater ski performance based on your abilities, area you ski and type of ski you have! There is no standard!!!!!!
I never blinding use that reference mark! Yes I look at it for a second, then I do my own measurements! I also place the bindings according to my needs,,,,and yes I vary this placement based on the model of skis I have since I know what I want in a ski! Yes I have varied positions on varied skis!
In short if you want to install your own bindings,,please practice first on an old ski. Then know what the ski is designed for and what your skiing needs are!
Then at least have a "knowledgeable" person check your work!
Yes seems easy, straight forward but are you willing to assume risk due to the fact that your "torqued" the screw too much or not enough! If you ask yourself,,"what does that mean torqued too much,,,,,well do NOT even try,,since you now have "stripped" the screw and at that critical time,,,,it will pop out!
Tell me where you live,,I am willing to do work for free,,,,or at least after a day of skiing show you all the errors I made (and there were many)!
Your peace of mind is worth that $25!!!
A skier who has ruined several skis!