HTS 110K4 Keyless Conversion Chuck Adapter for Power Impact Driver - 1/4 Capacity by Pro

For the price, this is awesome!!I mostly use it to hand drill plastic figure models. I don’t need anything complicated or high tension.I’ve also used it for all kinds of small fix-up projects around the house. It is great! Hasn’t broken, been using it for @ 4-5 years.The only downside is if you need a medium torque, it will unscrew instead.For higher torque projects, consider spending $20 and look up something like this:Neiko Heavy-Duty 3/8" Conversion Chuck

Very handy to have! This allowed me to use a small Ryobi rechargeable hand drill to clean up 3d printed parts instead of using a much larger and heavier 18v cordless drill. It lets me make precise holes very quickly and easily. Its great for drilling into plastic and wood but would not recommend for harder materials, it simply wont grip the bits tight enough for things like metal when the bit catches on a chip. As long as you understand its limitations, it should last forever.

I was excited to get this chuck adapter to be able to use some of the very small drill bits from my precision screwdriver sets on my Ryobi 4V screwdriver. Everything fits ok, until you start turning the chuck to load a bit. The shank that attaches to the drill on one end has threads at the other to adjust the jaws that grab the bits. This post is not straight and makes the entire adapter wobble uncontrollably when rotating. It is at least 1/8" out of alignment, meaning that when rotating, the bit moves in a circle about 1/4" diameter.update: i was able to find the package and contacted the seller. I am being sent a new adapter, here's hoping this one is better

It is really a time saver and works as advertised. The grip is a bit lose and it loses the bit if it is bigger than 1/8". It even lost the grip on the bit a couple of times today. There is a stronger version with key that I also use.(Neiko Heavy-Duty 3/8" Conversion Chuck)A simple design change would have made it stronger: Changing the thread of the screw to fine thread would tighten the bits with a stronger grip.

Had it for about six months really liked it .After six months it starts falling apart lost two springs and no longer functions but for the price I paid it was well worth it when it worked it works very well.also a professional installer so I put a lot of wear and tear on my told every day.if I was a normal person or a home mechanic thing would last me a lifetime!

After a few uses the washer/slug inside was distorted and the chuck would not properly align. I hammered it flat and it has served well. So far... I would pay 6 or 7 times as much, if that dollar equivalent in quality was built in the chuck.If there is another higher quality model out there - buy it. I purchased this one because it was the only product of its kind that I was able to find. I should look at the big industrial tool suppliers, but have not. Ever since hammering the slug flat it has been working.(2 yrs. later)Communist Chinese children strike again. It has completely failed. There are now much better ones of this type on the market.There is one is made by a major chuck manufacturer - but for the life of me I can't remember the name...I saw my own review today & wanted to add that I have long since thrown this in the scrap metal pile.This one has much better reviews although I know nothing about it. Neiko Heavy-Duty 3/8" Conversion Chuck for Impact Drivers - Quick Change Shank - 1/2" Adapter for Impact Wrench UPDATE:Ha! I found what I was looking for. The one below is my choice for replacement. Milwaukee 49-22-1560 1/4-Inch Chuck Attachment

This chuck works very well! It has smooth closure like a full size chuck. The size around is a bit larger than a 25 cent piece (quarter). The use I am using it for is adapting up to a 1/4" drill bit etc. to my dremel 3000 rotary tool. Great chuck for the price!  Keyless Conversion Chuck Adapter for Power Impact Driver - 1/4" Capacity

Junk. Mine broke after one use, will not hold up to a drill of any kind. Don't waste your money on this.