Phase II 250-065 Quick Change Tool Post and 8 Holders. Made from high quality, heat treated tool steel. Designed to fit the popular 7 machines. Will fit 6 lathesand higher lathes. Excellent for the Atlas/Cradtsman 6 618 Lathes. Includes the following tool holders. PHASE II 250-067 #1 Quick Change Turning Type Tool Holders. 5/16″ x 13/32″ Tool size. Turning Type Quick Change Tool Holders – 5/16″ x ½” Tool size. Home made Holders (Aluminum) Turning Holder Quick Change Tool Holders – 1/2″ x 1/2″ Tool size. Turning Type Quick Change Tool Holders – 13/32″ x 1/2″ Tool size. Turning Type Quick Change Tool Holders – 13/32″ x 13/32″ Tool size. Boring Tool Holder – 3/8 Tool size. Cutoff Tool Holder – 1/2″ to 5/8″ Blade Height.