The desk is brilliant addition to my study, its sturdy and has loads of storage.  Designed to house a tower PC hidden and use up some oak kitchen worktop off cuts that I had.  The two toolboxes were bought from Ebay on the cheep.  I won one at discount and contacted the seller and asked if I could have a second at the same price which they agreed.  

the worktop is attached to the toolboxes using double ended threaded inserts; one end has a M8 threaded rod and the other has a wood screw thread.