The holes in the plastic bases of my craftsman 27683 router are just a gnat's eyelash too small in diameter for a standard guide bushing. The larger diameter part of the bushing does not fit in the hole. How can I make the hole a tad larger? Can I use a circle cutter like this one Carbide Tip Adjustable Circle Cutter
? Looks tricky. I do have a drill press.
Since the hole in the router base is stepped, I need to increase the diameter of the larger, stepped part of the hole. I even thought of just scraping it with a razor knife but don't think I can get it concentric this way (does it matter?).
Related question: when using a centering cone, do I adjust the bushing within the router's base hole, or adjust the base on the router?
To adjust the bushing would require that the bushing be a little loose in the hole, which it isn't. To adjust the base would require that the holes for mounting the base have some play in them. They don't.
What am I misunderstanding here?
As I type this I realize that maybe the HF bushings are just a little too big in diameter. I'll have to check them later.
I also have a Skil 1835 router and the guide bushing fits perfectly in the hole in its base. When I say perfectly I mean without any play, so no way to adjust. The guide bushing is from a set I bought at HF 9 Piece Router Template Guide Set
. I also own a base plate with quick change guide bushings. milescraft set
This one has a universal plate and the HF guide bushings fit it just fine.
I took the guide bushing to Sears and tried 4 -5 other routers. All have the same problem. I tried the guide bushing from the Sears set, though, and it fit fine in the Sears routers and loose in my universal adapter. craftsman bushing set
So it looks like the Sears guide bushings and router bases are all just a tad smaller in diameter than 'standard.'
Thanks, again, for helping a newbie.