EEEEEM4 M5 M6 (100pcs) Metric Threaded Inserts for Plastic Heat Set Insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding Press Thread Nuts

Very nicely made, the sizes are correct, the screws fit.

In particular the external finish and the uniformity of the parts is noticeably better that others I've used. The parts box is also nicely made -- you can open only the compartment containing the size you're after, leaving all the other sealed up.I only wish I could get the sizes I use most frequently in bulk.

I haven't used the inserts yet but they look good. I do LOVE the containers they came in. Each compartment has its own lid, so there is no accidental mixing. The labels are wonderful too, all the info you need easy and clear to read.

I really love how much variety this kit has and I love how everything is labeled and organized. The threads stay in place with no issue after letting the PETG cool down and the quality doesn't seem bad. Now My big issue is how inaccurate the 7.09 is across the different M6s, I've included pictures of my caliper. The only one that was decently accurate were the M6 H6 & H8 which meant they work in my 3D prints, until I used an H10 which didn't melt through properly and found out that it was just very inaccurate in size as it's 7.42mm for the guide ring. The other problem I have is that there's very few inserts for M6s, so this kit is mostly meant for tinkering and testing. I wish they sold extras for each of the sizes since since it's impossible to find some of them. Most of the ones I found are 12.7mm in length and only a place or two has 10mm ones. I've been unable to find any of the other M6 sizes anywhere.

Nice set, with a good range of sizes. If you use it for 3D printed parts don't forget to increase your infill or you might not get a strong grip. Used on a few projects so far and really happy with the results.

these are my first foray into heat inserts. So far they have worked perfectly. I love the packaging style and info about each size. Having the diameter and height on the package defintly helps when designing to use them.

The size and dimensions are clearly labeled. Each type is in a separate compartment, so there is no accidental mixing. A compartment for tips would make this unit even better. Inclusion of M2.5 is welcomed for raspberry pi projects.

This is a great set as a starter kit, has most all sizes you could use for general 3D printing and the inserts are the good ones. So far all of my uses for these have been excellent, no complaints at all. My only wish is that they sold replacement refills in bulk.

J'en au utilisé quelqu'un pour des impressions 3D et ils conviennent parfaitement