Reddit reviews HTS 101I0 6Pc 180mm / 40-600 Grit Diamond Flat File Set
We found 4 Reddit comments about HTS 101I0 6Pc 180mm / 40-600 Grit Diamond Flat File Set. Here are the top ones, ranked by their Reddit score.
Files are 7" / 180mm long in 40, 80, 150, 240, 400, & 600 grits2 1/2" PVC handles have excellent grip even when exposed to moisture and fluids2 3/4" / 70mm diamond coated surfaceIncludes: 6 flat files 3/8" / 10mm in widthIncludes a vinyl pouch for easy storage
I have this set, which is 6 files from 40 to 600 grit. You'll honestly only use the 400 & 600 most of the time, but the others can be nice for drastically reshaping a part.
http://www.amazon.com/dp/B00292IOAA/
Maybe start your hole with a forstner, do as much as you can with a smaller spade bit, then finish up with the original forstner. That's if you really need a flat-bottomed hole. If you're going all the way through, just start with the forstner so you get a clean start, then go the rest of the way with the spade. That's if you don't need a clean back hole. If you need a clean in and out, a forstner-spade-forstner sequence might do the trick. I think my forstners and spades that are the same size are actually enough different that you'd have to finish with the original forstner, either way.
Get a pack of diamond files.
Here's a quick how-to. You can use water as a lube when using diamonds.
https://www.eternaltools.com/blog/top-10-uses-for-diamond-files
Bought a cheap one on amazon: it cuts through steel like it's butter (in seconds) and polymers are like cardboard with that thing.
Mine is a replacement for an arc saw, though, something like the following should be enough (they have the same surface as mine, meaning, real industrial diamonds).
https://www.amazon.com/HTS-101I0-180mm-40-600-Diamond/dp/B00292IOAA
Also, if you don't know this yet, industrial diamonds are man made, artificially. They have no value as jewels, hence the lowest price ever.
Links to cheap files.
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