Noticed my v wheels where loose went through everything seems tight. Once in a while the bit will chatter and getting a little uneven cuts. Using 1/4" shank flat end mill 1400mm 250mm 3mm and makita router a 20000rpm. Cutting pine right now.
When I using my 1/4" ball nose bit it jumped even worse too the point i cant use it. its lil bit longer of a bit I think.
Just wondering what I should be checking ?