Our gear can be standard as per European or American standard or special as per your drawing or sample. Features: 1 Material: carbon steel such as C45, 20CrMnTi, 40Cr, 42CrMo or stainless steel or copper or nylon and so on 2 Heat Treatment: Hardening and Tempering, High Frequency Quenching, Carburizing Quenching, and so on. 3 Standard: European or American standard 4 Item: M0.5,M1 .M1,5,M1,7,M2,M2.5,M3,M4,M5,M6 and so on 5 Export Area: Europe and America 6 OEM service: make based on your special sample or drawing and meet your need for high precision on teeth of the gear