Don Dando wrote:
The screws you mention are the height adjustment screws. The cutters set on
these screw heads.. The others lock the wedge like holder in place to hold
the cutters firmly in the rotating head.

Adjust the cutters so they are all at the same height or else you will get a
"ripple" cut.

Don Dando

Hey Don. How come you started a new thread in reply to an existing
one?

R