Building a billet compressor cover on 5 axis CNC Apr 21, 2017 Cover, Cover Building, Cover On, Shifting Skin, Building the highest flowing compressor cover in 5 axis cnc. Full billet. Like 0 Thanks! You've already liked this « Had to MOD my bumper cover » Unknown Toners – Insensitive Cover (First Gig) [12-04-2015]