Kenneth10483 10+ year member
CarAudio.com Elite
Whats the best bit to use to cut the circles 1/4 straight bit? any brand that last longer?
no one ever said you had to cut the circle in one pass...I usually make 3 passes. Taking about 1/4 inch per pass.use the up cut the straight is just barely enuff cutting surface for 3/4 causes heat and sometimes breakage