The first order they gave me 3 years ago was 450 and it really took me a while. I now have it down to a science.. They are done in an assembly line method. They are all cut to 5" then in half, then all drilled, then all trimmed , then all tubed. I only use 2part 5 min. Devcon Epoxy for the brass tubes. It has more flexiblity than any CA and costs much less. I let the tubes set at least overnight. Then I trim all of the tubes with a jig for the disc sander. So now all of the pens are ready to be turned. At this point I usually turn and assemble about 50 in a day, not takeing the entire day.It is very taxing and the last 25 of the order is murder!, but if they asked for 500 I'd still do it! Once a corian pen is off the lathe it is done. All the sanding and polishing is done in place and there are no suprizes. No knots, no bugs, no rotton spots to deal with, just sand and polish! 150,220,400,600,then Novis fine polish