Cut from left to right on an edge facing you, and go clockwise cutting holes. I try to use bearing guided cutters if possible in a template or on a staight edge, and don't buy cheap cutters. Take small cuts commensurate with the power and diameter of the bit. The 1/2" Makita is 2.5hp and with care and a good grip I have freehanded 2" diameter molding bits, but a table mounted machine is safer for the inexperienced. A table mounted machine usually cuts wood right to left. Norm has a good table design on the NYW site.
Tractor is on hold, other urgent stuff withstanding, but due for a paint job this summer if I can get her off the bloody thing!
[Linked Image from i108.photobucket.com]

Alan

Wood work but can't!