Another good option might be the Simonich Knives Bitteroot, it's a wonderful little necker and cuts amazingly well for such a small knife.

http://simonichknives.com/midtech.htm

Specs from the site:

Blade - 1.75" S30-V or Talonite
Overall - 4"
Blade Style- Clip Point
Finish - Satin Stone Wash
Weight - .8 oz
Sheath - Kydex Neck Sheath

I have the first BRKT Nano Slither. Jimmy Stewart thinned the handle for me and it is now a part of my modified Ritter AMK PSP, replacing the scalpel blade. I sometimes add a Alox SAK Classic, SAK money Clip, or Alox Bantam SAK to my PSP/FAK's in addition to the Nano Slithers.

I have the same Gerber Ridge Knife. Took the clip off of the back to make it even thinner.

Some knives that I have found nice for small to medium sized kits are made by Gene Ingram. All of his work is very well executed, and considering that they are customs knives quite well priced.

This Naked Pocket model is ideal for the slightly larger than altoids kits. This one has a slim leather sheath but could be put in kydex to save a bit of thickness. This one is in A2 with about a 1.5" blade.



I have this same pattern with micarta scales which increases the usability a bit over the naked version. This one in D2 also with a 1.5" blade.



For the mess tin sized kits this Lacer works quite well. I do the lacing on these knives for Gene so I am a tad bit partial to them, but the leather lace makes for a slim but grippable knife. This one in D2 with kangaroo lace and about a 3" blade.



I have a few other Ingram’s…..



His EDC model and SLK are also sized nicely for kits (green bone handled ones in this image).

Gene Ingram’s website can be found here:

<a href="http://geneingramknives.blademakers.com/" target="_blank">http://geneingramknives.blademakers.com/[/url]</a>

I found the small Svord gent’s peasant knife an excellent folder for my PSK. It is a non locking 1 7/8” blade (+ve for UK legal stuff) but with a straight razor like tang so the blade won’t fold back under use like an SAK.
Its handle/knife is very flat so perfect for tight packing:
Total 10.5cm long (of which the thin tang is about 2.5cm)
2cm at its widest & 5mm thick for the body.

It’s spent most of its time waiting patiently in my PSK but faired very well box and tape cutting during a house move. No hard use feedback!

The blade body has a convex profile but a decent flat bevel on the edge makes for easy sharpening, also the knife is listed as carbon steel but I am pretty sure it’s an ok stainless grade.

www.svord.com

The larger locking SL looks like it would pack in a kit very well also.

Dougb