by HomeRacingWorld » Mon Feb 10, 2014 6:51 pm
I agree with you Todd. Just printing the advice from PM. I cannot say I take much stock in trying to precise match these guides using a drill#. My calipers come up with sizes of 3.50 - 3.52 for the 20 times or so I measured them. Both plastic and wood.
This is why I used a rat tail file and not a drill bit as I prefer to sand/file and then test fit. I have always used this method as a drill bit recommendation may not be that accurate.
I set up my guides to to turn freely without excess slop. I just tighten the screw until it feels secure with no side to side free-play when I grab the blade. But not too tight. Binding in the guide is not your friend.
I tested it in a B-Nova adapter and it fit perfect without sanding.
The Slot.it line of guides works though and has for years. Easier on the wallet too. I still have the Slot.it's and will keep on using them.