Originally Posted by
xxfile
I think cutting a slot thru the hex is just asking for it to fail.
I used a power screwdriver with a screw to pre thread the holes, go straight in in one constant drive. using a hand held driver is a lot of starting and stopping and angle changes which doesnt help.
did six diff cups with only one screw and didnt have a problem.
The only issue with getting a tap is its really small and if you break it off it might be a problem to get out... Murphys law states that it WILL break off inside where u cant get at it. again if you do I would chuck it in a drill, NOT the hand tap handle.
If I was tapping metal holes that deep I might be worried about a broken tap, but in plastic I've done holes much deeper than these diff cases without problems.
I burned myself on a screw
backing it out with a power driver from the friction generated heat. Even screwing it in manually, I could feel heat build up.
Originally Posted by
xxfile
NOT an issue, after tapping the screws are still very tight going in...
I'll do it for the next ones I replace.