4PCS Keyless Drill Chucks Quick Change Adapter 1/4" Hex Shank 1/8" 1/16" Round Shank Drill Chucks Set

I received a set of items as pictured and expected. The review talking about how poor the quality was and mentioning “runout” or the amount off center the item causes in effect, I did not experience a noticeable amount of runout due to poor quality.Whenever you add an adapter to a Chuck, and I don’t care what application you are using be it a drill impact or dremel/ other power tool: whenever you add an accessory or adapt a chuck or otherwise in this lot listing you can expect a little runout for obvious reasons. Again in my case I had an almost true end drill point and was pleasantly surprised having fears from the prior review. I guess it was a bad batch prior or user error possibly if he didn’t seat the chuck right but I’m assuming he is (sounding) well competent and aware of these things and will default to China for poor quality. Good news is based on my batch they have addressed that quality issue

good

Needed drill chuck to hold .040 drill worked great.

Poorly made

These chucks align a bit to run true. My previous chuck purchased several years ago allowed the bits to wobble when tightened. These chucks do not, and should work for anyone doing small semi precision jobs.

Sigh -- run out is staggering on these. 1.0mm bit at 2cm makes a 2.5mm circle for the smaller chucks (ca do better wrapping cellophane tape on the bit and than chucking it in 1/16 capable, but square, chuck. Materials are very soft but the arbors are well made and square. I may well replace base seat on two of these with steel part (given I find the time). If you are looking to chuck small bit on a drill press, better look for a JT0 Jacobs 1/64-1/4 chuck... $59 or so. I don't understand the lack of inexpensive small chucks and pin vices -- for PCB use, use carbide bits and collets.

Good, but not quite what I was hoping for. Only good for CW rotation.

These drill chucks are the perfect accessories for my mini cordless electric screwdriver. Now I can make precision holes in my arts and crafts projects.