Dimensions: This is a 4-inch diamond-shaped file. The file head is 100mm long and 19mm wide, the handle is 110mm long, and the total length is 210mm. Its compact size makes it easy to work in tight spaces. Handle Design: The handle is yellow and black, designed according to ergonomic principles, fits comfortably in the hand, and effectively reduces hand fatigue. In addition, there are non-slip patterns on the handle, which increase stability during use and prevent slipping. File Head Structure: The file head has a diamond-shaped cross-section, with a cross-sectional distance of 2.8mm and a side distance of 0.3mm. This structure ensures high processing efficiency, allowing materials such as metal and wood to be quickly shaped and ground. Material and Durability: The file head is made of high-quality steel, which is very hard and wear-resistant and can be used for a long time without quickly wearing out. The handle is made of strong, durable plastic and provides good support for the file head. Applications: Suitable for various scenarios, such as metalworking, woodworking, and mold setting. It can perform precise processing and deburring on workpieces and is a practical tool for manual processing.