I can see a floor model hollow chisel mortiser in my future so I've been reading up. I'll be using it mainly for making chairs so a tilting table seams like it would be useful (vs making a wedge). I've passed on a couple of Powermatic 719T used machines because they only tilt side to side. Grizzly (G0840) and Beiliegh (MC-1000TT) mortisers have the table tilting front to back as well as tilting side to side. They look like they come from the same factory. But they only use 3/4" shank chisels. When reading up Lee valley premium chisels came up often but the smaller ones have 5/8" shanks. Does anyone make an adapter?
Is 5/8" a common size for premium chisels 1/2" and smaller? I could get a bore reducing bushing for a pulley but they don't have a "head" on them so the part of the chisel that hits the mortiser when it bottoms out and takes the force when pushing it into the wood may not be large enough to catch the 3/4" opening. It's only 1/16" on each side so it could work.
Here's a reducing bushing.
s-l1600.jpg
This is a picture of the bushing for the Powermatic.