This tool is excellent for both coarse and fine carving. Time will tell how long it stays sharp, but so far it's doing a great job carving at 3 o'clock.
These are great bits that stay sharp for a long time (Carbide is great). They are solid and won't break. I use them on a CNC machine where I need small bits and they work great. I bought several and was very satisfied.
Several threads have been made to date and the quality obtained is stunning, I pressed the clamp screw with the previous one and although it still cuts to an acceptable level. K opted for a pair of identical ones to maintain the quality of the work