Thread: Too small?

If the drill is not the right size the tube won't fit but a round rasp and a little filing would help. Are you using metric bits or imperial? Some metric equiv drills may be a bit smaller or larger than the size recommended if they use an imperial bit. Good luck with it
Pete

It sometimes happens that when using the correct size drills ,that the heat generated by drilling the material can shrink slightly when cooling ,as suggested a rat tail file or rasp,will usually open out the hole sufficiently for the tube to slide in ,epoxy bonds or araldite is best for these glueups,as CA can soften during sanding and polishing and not support the thin shell you are working with .Cheers ~ John

Reminds me of the problem I always have with Dayacom Americana pens. Hole bored with 11/32 inch bit, and it is always too small. Much use of rat tailed file and bad language. Might try EB size (23/64) next time.
Bruce

I take a 6" (150mm) long dowel and saw a slot in it about 2" (50mm) long, chuck it in my drill, wrap a short strip of sandpaper to create a single flap sander, and stick it in the blank to sand until the tube fits.

Pete

I like that drill/flap wheel idea, sounds perfect will give it a shot thanks very much fellas.