Features: High strength and hardness, very easy to operate. It implements external cutter installation, and features quick change, high precision and high rigidity. Tool holder with adjustment screw nut, adjust the height of tool, shorten the loading time. They can be combined with the small carriage, can handle all kinds of angle workpiece. Wide fitting, this set of tool post and cutter holders can be used for many type of mini lathes. Specifications: Material: Aluminum alloy Color: Black Quantity: 4pcs Size: Approx. 5 x 5cm/ 1.97 x 1.97inch Weight: Approx. 319g Package Included: 4 x Mini Lathe Quick Change Tool