Filing keys to the code

[Millow]

Hey guys,

What tool would I need if I wanted to copy a key with the code ? A pippin file, a triangular file ?

Any article worth reading on the subject. I tried looking but the search function is broke.

Thx

[elipriest]

I usually just use an impressioning file (similar to a rat tail file, but tapers into a sharper point) and vernier callipers.

[LockDFTR]

I don't know how easy/hard this might be for you if you are just starting out filing your own keys, but I personally use a needle file set. I will use the triangular file to knotch the correct spacing on the blank. Then I will use the round file to get my depths, and the tapered file to take off the edged as I am filing down. It may seem a bit involved at first, but after many years of making my own code keys, it becomes like second nature. I am sure every locksmith has their own technique, and tools that they prefer.

As far as reading the depths, you can use calipers, a micrometer, or easier yet, just use a premade depth guage. Easy to find, and not that expensive. Good luck and happy filing.

p.s.. keep a band aid close

[straightpick]

A #4 cut Pippin file is a good choice-you can deepen and widen the cuts with the same tool.

[raimundo]

Find the centers of each bitting and scribe a line down the keyblank to keep this information while cutting so that you do not have the center drift left or right as you cut down. Personally, I would take it close to the bitting then impression for the last fitting. You'll probably have to do that anyway, so plan for it.

[poor paperclip picker]

I my first copy of a key about 6 months ago. I would just take my key blank and mark where the depths would be (going across the key, not how deep but the spacing) and then I would file and compare with the original key. And the file I used...the file that is on my leatherman multitool. And the key works. So I was pretty proud.

But I am sure there are other files that would work better, but if youre determined enough you can use probably any file.

[Legacy712]

I've always used a triangular file which has one edge of it ground off a little. I use a normal edge to mark and create the cuts. Once I have the cut down where I want it to go, I use the ground edge of the file to widen it without going any deeper, as it only files sideways.

[Arcturus]

The file will depend on the ramp specs of the original key. Triangular files are good for linear ramps, and rounds or pippins for curved. A key micrometer is quite handy too.

[WOT]

Pay attention to the edge. If you get carried away, you'll get a key stuck hard in the lock.

[cppdungeon]

I too use the triangle-round method for my keys. then i use a flat needle file (?) to round the edges, otherwise they key gets stuck in the lock because when you pull it out, the pin has dropped down into the key and the edge of the key is too sheer. so be careful! The way i learned how to do it was with a lock that had been taken apart, so i could see what was wrong with my cutting.