I’m going to be putting new front sights on some CZ pistols. They have a 2mm roll pin that holds them and the barrel bushing in place.

The Dawson front sights I use have a v notch cut for the pin and needs slight tweaking to fit. This is a good thing, but hard to do with flat files. I bought some specific drill bits but decided I’m not ready to invest in the equipment just for this.

I have several to do so I’d rather not pay to have them done.

Too big for my Uo-Chikyu Nut Files. I’ll use Grobet or similar jewelers needle files for tight work. Currently my 12-piece Nicholson seems to get all jobs done.

My "Nicholson 12 Piece Needle File Set with Handles, Swiss Pattern, Double Cut, #4 Coarseness, 5-1/2" Length" are priced at $105 - $135. A few years back a guy was selling hardware store close-outs and had several packs of these for $35 each - I bought two. So they do come up.

A single really good mouse-tail file on Jewelers Row can be $15. Or as cheap as $5.

Here are a bunch of choices.

https://www.ottofrei.com/Close...le-Set-Assorted-Cuts

Thank you, those look good!

I have little use for files, what I’ve needed has been handled by a fine chainsaw file and sand paper. I just need a round file at about 400grit and don’t need a full set.

I ordered some LP1680 files to try.

Wow, the LP1680 series are small indeed. My Japanese nut slot files go down to 0.254mm but are made for slots. The Nicholson round needle file starts at a millimeter and tapers up from there, hitting 2mm diameter within 20mm of the tip.



Micro-Mesh Sanding Sticks are great for removing tool marks. 1500 to 12,000 grit in the 9-pack.

I bash harbor freight a lot, but I've been using their needle files for years, and they work well, and hold up well, and are inexpensive.

I just used some for making a slight adjustment on a Dawson sight a few days ago, in fact.

I would look for needle files made in Switzerland. There are some that are embedded with diamond chips that might be best for hardened steel.