2In Boring Head Set, 9-Pack Carbide Boring Bar Set, R8 Shank 1/2In Milling Milling Machine Accessories

The product is exactly what is shown. It came as expected.

I did use the bore head immediately as I had a 15mm bore to cut. First, I put the head in my mill and began adjusting. Why is the head wiggling about???? It's wiggling! Is the R8 collet junk?🤔 Took the tool out and found out the collet and head are two separate pieces and threaded together about as hand tight as a two year old would be able! Threaded together by 30mm thread or so, I did not measure, but that's about what it is. Took that apart, applied RED loctite as I DON'T WANT THIS COMING APART! I could have welded I suppose? Either way I don't want the tool coming apart during a bore process. First task is to secure these two pieces together!The dial works OK but for sure has a good amount of backlash. The description states .0001" increments but on the tool itself it's stamped/laser cut .001" on the diameter. The dial is easy enough to read just make sure of your direction every adjustment. It works if you are careful!I did find the bore bar carbides to be not so sharp. Dull enough to cause a good deal of deflection. A sharp 1/2" HSS ground bar might be better!OK, so I'm expecting $2000 performance from a $70 tool. My bad! It works but sneaking up on your diameter is necessary. Also, a couple spring cuts are a good idea!I would not recommend this for a beginner/ novice. There are just too many factors that will destroy your project unless you can figure how to make stuff work. Can you redneck this tool good enough to work? Maybe!