Stainless steel handle gear Material: 17-4PH; Weight: 10.0g; Hardness: 35-40HRC; Tolerance:five thousandths; from Dongguan New Decoration Material Technology Co., Ltd. - MIM parts expert in Dongguan, China. If you are in need for the similar products, please email me the 2D and 3D drawings with detailed spec. Sorry, my previous answer was wrong. stainless steel handle gear refers to stainless steel handle gear. It is a device used to control the movement of machinery, usually used to manually operate mechanical equipment or tools. The stainless steel handle gear is made of stainless steel, which is resistant to corrosion and wear, so it is suitable for use in harsh environments. Stainless steel handle gears generally consist of two main parts: the handle and the gear. The handle is the part used to manually rotate the gear and is usually ergonomically designed for comfortable holding and o…