This new set includes an excellent clamp type knurling tool suitable for 3 1/2 centre lathes etc. This is the preffered type as it clamps top and bottom of the work instead of pushing and therefore does not stress the lathe bearings. The unit is fitted with a pair if diamond pattern medium HSS knurls. The shank is 5/16 square. Also included is a useful double ended straight knurling tool with a single medium knurl one end and a single fine knurl the other end. Four Replcement Diamond knurls are also included for this item in fine and coarse. To complete the kit is a 10mm square parting tool complete with three HSS parting blades 2mm thick x 8mm wide x 70mm long.