Dudes, no ,seriously, best drill bits money can buy will not so much as leave a tickle mark, I promise you. You should try and see for your self. As to the motives for this particular caper, I've got to modify the whole linkage, convert it to push clutch fork forward instead of backward per original. It boils down to me having to reverse the arm beside the steering column to make the rod push down instead of pulling up. Make a hole in the floor about 3 or 4 inches below original hole, then extend the arm of the bellcank by about 4 or 5 inches so the clutch rod drops straight down onto it. So I get me some 25x5mm stainless - which I'm warned is as hard as hell and hard as hell to drill through. My money no object bits go right through with dazzling ease. I use the existing hole on the arm of the bellcrank as the first fastening point then figure I'll make another for my second. Bellcrank hasn't read the script. My son arrives, a partner in a speedshop, thinks he's seen it all, thinks his oldman's a schmuck, says he'll do the dishes for a week if he doesn't make a hole. Gets out his Snap-On pilot punch from its jewel encrusted Snap-On box, his confidence could tan me and I hate him and love him at the same time. I sincerely believe he can do this. Bellcrank disagrees. Snap-On pilot punch's deadly sharp tip looks like the end of a pool cue. My son looks like five, outside school, no one there to collect him, says I misheard the dishes thing, we argue, he searches in vain for a mark on the bellcrank, there's nothing doin, we argue, he takes it over to his shop, pillar drill, weapons-grade speed, weapons-grade bit, bellcranks kicks [censored], we argue.
