Features: Experience superior performances with Sherpas Straight Tooth Nanos Coated Integrated Gear, for Enhanceds concentricity and reduced eccentric rotation, ensuring smoother filaments transmission in 3D printing projects. from stainless steel and Nanos coated mold steel, this gear set features Hollows with high reduction ratio gears, offering increased extrusion Torques and exceptional wear resistance. for mechanical enthusiasts and professional using Sherpas Mini Extruders or VORON series, this gear set is for those seekings Precisions and reliability in 3D printing components. Perfectly for integration into 3D printers like the Sherpas Mini Extruder version, these gears essential for anyone lookings to printer performances with high strength, components. with Rockwells hardness values of HRC 62 65 and surfaces hardness HV 1000 1200, these gears ensure durability, strength, and corrosion resistance, making them a vital addition to any advanced 3D printing. Specifications: Materials: Metal Wheel: 25.8mm/1.02inch Package Includes: 1Set Sherpas Mini Gear note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.