I have the old Don Pencil buffing system no longer available. It uses a shaft threaded to fit either the 1" or 1-1/4" drive on lathe. I was fortunate to buy both the 8" and 12" shaft in 1-1/4" for my Powermatic 3520B and have the 8" x1" Thread for my midi lathe. The shafts have a 3/8" thread to use a bolt inserted in the buffing wheels. Beale uses a Phillips head bolt that to me is the same as a router bit if you happen to hit your piece with the bolt head. I have replaced all the bolts with flat head "elevator" bolts that require using a double nut trick to lock and tighten the locking nut at the buffing wheel. I have had to go back and drill a couple of small holes in head to insert a rod to use should the buffing wheel slip. The small 3 and 4" buffing balls with 3/8" screw can also be used with the shafts. I also find the making smaller buffing wheels about 4 to 6" diameter work better for smaller bowls than the balls when you can get the wheel inside the bowl. A buffing wheel will definitely grab an edge. I have thrown more pieces buffing by far than any other failure. I definitely believe in buffing with Tripoli - do it before applying Danish oils, between coats, and after final coat. Renaissance wax for final give long lasting fingerprint resistant protection.