Gaosi Tools Woodworking Tool Drill Guide Vertical Drilling Fixture

The inner rings that came with it are all either too big, so the bit will precess a little, or too small, so they don't fit. The base is kind of small, so hard to grip while drilling.Id' be okay with it if this costed me $15, but at more than $30 I can't give it more than 2 stars.

only 75% happy with thus tool. accuracy is a little sloppy. 8mm bit will wiggle enough to make the hole just a little off. if your not really concerned about how straight it goes in then you will like it. also the price is a little too high for the job it does. overall it did a sloppy job of drilling a hole straight down.

Terrible tool no way to hold in place or ensure accuracy of alignment drill guids limited

This had some promise, but in practice isn't quite right. The inserts don't have enough options in size - esp for SAE sizes. It isn't quite useful for what I was hoping but I'm using it in a few other spaces.

Did what I needed it to do.. comes with a bunch of inserts for multiple drill bit sizes. Easy to use and very stable.

bought for a different project, but this wound up not working for it. It has found uses elsewhere, though, and works great.

Exactly what I was looking for to reattach some loose ceiling tiles in the basement. Outstanding!

Cast aluminum, 5 different bushings. Able to drill a straight hole through a piece of 2" x 6" alum. Rec tube.