ROBUST MATERIAL- This small metal file set is made of premium carbon steel with high hardness, enduring, not easy to rust, and has a long service life. It has a special surface treatment, and the teeth pattern is clear, tight, and even, which can grind fast and increase the working efficiency. COMFORTABLE HANDLE - The metal jewelry file has an ergonomic handle that is comfortable to hold and ensures a firm grip for better control, the comfortable handle allows for long time use without tiring your hands. 5 DIFFERENT FILES - You will receive 5 carbon steel file sets, including a flat file, a half-round file, a triangle file, a round file, and a square file, 5 different file designs to expand the application range. The file body is 20cm long and the handle is 11cm long, the proper size to meet your needs. APPLICABLE SCOPE - This metal file tool is a great tool and very suitable for trimming, removing burrs, polishing, shaping, filing, skiving, and other craft projects. It can be used on a wide range of metals, wood, jewelry, plastics, ceramics, tiles, leather, glass, pipes, gypsum, and so on. HANGING HOLE DESIGN - This file has a hanging hole on the top of the handle, which allows you to hang it vertically after use, making it easy to access and saving space at the same time., Manufacturer: UNGFEI