This is an exceptionally well priced quick change tool set, designed to fit the Axminster BV20M and other similar lathes, by simply drilling out the 8mm mounting bush to suit 10mm or 12mm tool posts. This provides a means of swapping tools over quickly without the need to re-set the tool height. The tools are clamped into the holders with four socket head screws, the height is then set with the aid of the adjusting screw and the holder firmly clamped to the block with a cam locking device. Once the tools have been set to their required height they can be swapped over in seconds in the knowledge that the critical tip height will be retained. The set consists of the mounting block, which replaces the normal tool post on the lathe, plus three holders, a clamping key, two hexagon keys and a parting tool. Two of the holders take up to 1/2" square shank tools, and the third takes a parting tool. The height of the block is 37mm and there is a 10mm clearance hole for the mounting stud. Additional tool holders and parting tools are available separately.