How much is the woodworking machine with four heads?
Landlord, you say the four head of the machine is a hanging four or four independent? Light four spindles can be poor 2W block, and models with configuration, you did not say, the price is bad for you.
According to your needs, I recommend woodworking engraving machine, rotating axis, so that you can do plane engraving, you can also do three-dimensional sculpture!