drill press and up-spiral router bit?

[Sweet Willy]

Is it reasonable to try to use an up-spiral router bit in a drill press to clean out a mortise?

[LCHIEN]

I doubt you might break anything. THe problems I would forsee are:

1. bit turning too slow, the smaller diameter router bits are designed for 15-20,000 RPM, your drill press might hit 3000 RPM on a good day, won't make a clean cut.

2. Side load on your drill chuck may cause problems with it falling off the taper.

Try cleaning up with a mortise chisel?

[greenacres2]

Sent you a PM Willy--i know where you might be able to pick up a Delta DP mortise kit.
earl

[cabinetman]

You could likely use a rasp style drill bit. The corners (if any), would be the diameter the bit would dress. I've had the chuck fall off using a drum sander, so it's not a far fetched problem. Besides using chisels to clean out mortises, I've used some tools from one of my carving sets to clean mortises. You might find them easier to handle than a chisel.

.

[Sweet Willy]

Thanks guys. I never thought about the chuck falling off. Good point. I do have a complete set of very sharp chisels that I use all the time but was just wondering if that bit would work to speed things up a bit.