Extreme Reamer

I have had this set a few months and have done 6 full sets of EVA grips. Chucked one in the drill, this morning, to see it come apart. For price, you'd expect better quality.

Have to be careful to keep them centered unless you have a lathe and take your time and work up to the right size so buy all 4 but a must have for rod making/grip making

I used a brand new small reamer on a Full Wells grip with a rubber/cork composite first and last ring, burl cork connecting rings. Before I could finish reaming the grip (using an drill below 100 RPM) the abrasive came off the fiberglass rod.

Don't get me wrong, the reamers themselves work fairly well, especially used in a power drill or on a lathe
That being said there's a major flaw with the handle design
The metal insert that goes into the plastic handle is a smooth, ROUND insert, which is only glued? In place and it's prone to breaking free under anything over mild load,
If this insert was multi sided, or keyed it would prevent this from happening, but unfortunately it is not
So if you're ever planning on doing any hand reaming, make sure it's light work to avoid breaking these handles

you need to put this in a power drill for sure. if you try and use the handle you'll be working on it all day.