Jewelers saw blade

So I am to the point now on my SMR kit that I need to slot the holes on the barrel lugs. I bought a jewelry saw with some blades but they are just straight blades. I assume I need a spiral blade or some sort of abrasive wire saw blade. Can anyone steer me in the right direction? Everything I find is way to thin or not for metal cutting.

You can buy thicker blades pretty inexpensively on Amazon. Just need them thick enough so they don’t break easily.

I’ve used the standard thin blade to slot the lugs, it takes two cuts. One right against the barrel and another near the largest part of the opening. Then a jewelers file to finish the fit. Goes pretty quick.

I used a pointed, round jewelers file to slot mine.

Got mine from a plumping supply store.

During my tool and diemaking apprenticeship, I very rarely used a jeweler's saw...in the real world it's the slowest tool to use and time is money. A design that mandated the use of a jeweler's saw was changed so a faster tool could be used. Yes, the toolroom had jeweler's saws but they were used infrequently or not at all.

When I was a designer, never made a detail that req'd a jeweler's saw. I think that their use is limited to hobby work....where time spent isn't of the essence.

Initially, I used bent nails for bbl lugs so a jeweler's saw wasn't needed and later on used dovetailed bbl lugs and a series of holes were drilled and the thin webs between the holes were filed through using a small , round needle file.....still faster than a jeweler's saw.....Fred

The jeweler's saw has its place in this hobby and I would not be without one or three . I buy my blades by the dozen (cheaper that way) and have three or four different sizes on hand. I have some of the "round style" blades buy seldom use them. The jewelers saw is FAST when making cuts in underlugs and much easier than any file alone- in my opinion. Drill two small holes, cut with the saw and dress up with a Swiss needle file - first class job and done.