Will I sand a plenum. This is by far the worst experience of my life. I do not wish this evil upon anyone else. If I for some reason have to ever do this again, I will not do it.....

 

WTF would you sand a plenum? that's definitely a part to just clean and powder coat.

 

makes it smooth as glass

 

i picked up a roto saw rotary tool that spins 15k to 30k rpm's, it fits 3/8ths, 5/32ths, and 1/4th bits, however my 3/4ths sanding drums that i bought for my drill will fit in it, so it has greatly sped up the process, and is actually making it fun.