21 Pcs Center Drill Bit Set, Self Centering Hinge Tapper Core Hole Puncher 5/64'' 7/64'' 9/64'' 11/64'' 13/64'' 5mm 1/4'' & 1 Pcs Hex Key & 10 Pcs Replacement Drill Bits (Silver)

Received them and haven't used them yet, but they appear to be of good quality. I do like the white letters on the black barrels, making their sizes easy to read. It was nice to have a set of drills in them already with a separate set of drills included in the kit. A quick test of the sliding part (that keeps the hole centered in a hole) indicates that it's not as smooth as a higher quality tool would be. It could be that there's still some oil or other material on the parts preventing it from smoothly, but this tool certainly feels like it will get the job done for the handful of times per year that I need it.

Easy to use.

So helpful and useful

Some of the smaller bits had metal left in the hole the drill bit is supposed to come out of when you plug down into wood. Took a little bit of patience to clean up also some of the guide holes are not centered. Other than those issues works great.

If you can keep the pieces from separating, they work ok

I use these all of the time and they work great. Plus you get extra drill bits and a punch. No complaints here.

The drill bits work without the centering tool.

I should have bought these years ago. I didn't realize they came with an extra set of drill bite. Highly recommended.