Upcut
Upward geometry generally improves chip evacuation but may lift fibres on the top face.
Downcut
Downward geometry can improve the top face but requires compatible depth and evacuation so chips are not trapped.
Compression
Compression geometry targets clean results on both faces. It is useful only when the transition zone is correctly positioned within the panel thickness.
Important
The stated parameters are starting points. Test progressively on scrap and always respect manufacturer limits.