Description of CMT 537 413 31 Forstner 8 Inch Diameter Drill Bit: Top Performance and Precision
3-35/64-Inch Overall Length, Right-Hand Rotation. 2 spurs, 2 precision ground cutting edges, long-lasting cutting performance. Drill precise flat bottom holes with no chipping in any thickness of soft wood. For drilling holes in any direction and making arched openings. For drilling partially overlapped flat bottom holes or niches used to fix supports.
Cuts a nice clean hole, I wanted a parasol with no table, used it to drill a hole in 2x6 with a screw through one end that was attached to the top of the deck rail. I used this to drill a hole for an "umbrella" pole on top of another. The 2x6 easily folds out for use and folds back in when not in use, perfect for keeping the rain out while grilling.
Was a little apprehensive about buying a used Forstner bit but it came in the original packaging and worked like clockwork. Much cheaper than buying new (almost $10). It was a throw away item to install a weather station mount on my deck. My particular drill came from an Italian company but was (of course) made in China.
Pros
For drilling partially overlapping flat bottom holes or recesses for mounting poles.
I haven't used other forstner bits to compare but was hoping for cleaner holes overall. No saw cuts appear to come out of the hole either clean like the others I've seen in the videos posted Overall it was good value for money although it cost less than most other bits of this size and if you don't use it in professional projects where the very best is needed, it should work well.