Mate #1 has a small 6mm cup cutter (microcrystalline carbide sharpened with diamonds) set in a machined pocket at approximately 22 degrees. This allows for a more user friendly, less aggressive cut which is great for confidence building!
The cutter is set just below the surface of the tool, which helps protect the cutter from inadvertent and very irritating chips in the edge.
The cutter is held in place with a #1 torx screw tightened with a standard T-9 flag style torx wrench. The reason for the flag style wrench is that the screw only needs to be finger tight!! Do not over tighten. A light coating of wax prior to use will help loosen the cutter screw when you have been turning wet wood.
It is recommended to use the screw provided as the cutter ID has a taper which matches the taper on the screw to provide a secure lock up of the cutter.