Gear Specifications: This set includes a fixed duplicate gear with a height of 45mm, a hole diameter of 30mm, teeth of T37 and T27, along with a sliding duplicate gear, has a height of 25mm, a hole diameter of 12mm, teeth of T26 and T16 Gear Lubrication: To enhance performance and reduce friction between the metal gears, it is recommended to apply lubrication oil during use. This lowers running noise and prolongs the lifespan of the gears, ensuring smoother transitions Compact Design: The metal gears are compact, making them easy to install and operate. Their design allows for convenient transport and storage, making them suitable for various lathe setups and mobile machining applications Wide Compatibility: This gear set is designed specifically for 0618 7x12 7x14, for CJ18A, for CJ0618A, for 0618-3B and other mini lathes. This compatibility makes it a versatile choice for hobbyists and professionals alike, streamlining the setup Versatile Application: The duplicate gear set is not just designed for mini lathes but also finds its application in diverse fields, including chemistry, food processing, and woodworking machinery, Weight: 1.0912881969 Pounds, Manufacturer: Awwertse