Precision Circuit and Jewelry Engraving Tool: Genmitsu 0.1mm to 3.0mm Review

Good value for money only when they were new. Most of them have already been used (see picture). They work. I used a 0.2mm drill bit to drill a hole in a 1mm thick titanium sheet.

As you can see in the picture, each nozzle is color coded by size. Well I found them mismatched but maybe 2 or 3 judging by the picture. I had to measure and confirm each with a caliper.

If you're ever going to throw some money away, buy these. Presumably the titanium drills could not pierce the brass carburetor jets when turned by hand. Any size less than 1mm broke almost immediately, and those on the jet destroyed them.

I used these with a cheap Revain vise to drill gun barrels for Warhammer models. They work much better than the drill bits that come with the vise and this set comes in a variety of sizes.

I liked the wide range of diameters with small increments from one size to another. I use them on a Genmitsu router for. Drilling circuit boards. And a much thicker phenolic material for spring contact test stands.

I broke a few while carving so I'll have to start over. The drill diameter seems incredibly accurate. I wish they were a little longer. I feel the depth of my carving detail needs more.

They are excellent for model building, the range of sizes is suitable for every need! Of course, very small bits are brittle, but that's to be expected when drilling a hole the size of a human hair! Works great in both a drill press with a pin vise and a Dremel.

Yes, these bits are brittle. You have to keep in mind that they are used for slight wobble or misalignment in the jig and they won't lock in place Dremel. say they are a lot stronger than most and can work on a drill press or dremel tool it's just have new bearings and a steady hand or they'll even break.

I received a set of PCB drill bits along with a vise that I bought earlier this year and they generally replaced my standard steel drill bits for most models . . For those who work primarily with plastic, especially styrofoam, these things cut through like it wasn't even there! A word of warning, especially to those of you with shaky hands; These bits are very brittle, especially if they're less than 1mm thick, but that means the material is extremely hard and will likely hold a much better…