Have only just had this thread brought to my notice. As a long-time Bosch tool user, I have to agree with the others, a good DIY tool for the well-off, but not for the grunt and sweat (and cutting fluid) of metalworking.
Martin, if you want to avoid belt changing, consider this:
My Meddings pillar drill has 5 pulley settings, plus a 2-speed gearbox. By running its original 3-phase motor through an inverter I can get all the speed changes I need by using the inverter variable speed and/or the gearbox.
Drill cost £100 and inverter £50.
However, you can't pick it up and move it around!! But you can swivel the table round and use it as a strong worktable – a nice size to put a bench grinder on (or several cups of tea).
Phil
Edited By Robbo on 06/08/2013 21:44:39