I was reading Santucci's book and decided to try the guide plates trick. The only thing is, I cannot drill the 7/16" holes. What are these things made of? The drill I got, which said was for hardened steel or stainless steel aint doin nothin' but chirpin at low rpm's and smokey at higher rpm's on the drill. I think I just toasted the brand new bit I bought...damn!
Do I have to take them to a machine shop? Imma guessin.
Ctown