I have a set from USA knifemaker and they work great. I use a 1 ton arbor press from harbor freight.
When I do my handles with flared tubing I usually glue up with greased dummy pins and then take them out and do all my handle shaping. Then when I'm done I cut the tubes so they are the exact width of the handle, super glue them in place and then flare.
You can also use the Daniel Fairly method and cut the tubes oversized, glue them up with the handle and then sand them flush and flare from there. I use this method sometimes as well but you have to be very careful not to get epoxy in the chamfered/ counter sunk area.