Made of forged T12 alloy bearing hammer steel--- The durable teeth of the binder set are deep-hardened and coated, providing long-lasting cutting and reaming performance. 16-piece combination---4 large files, a flat/triangle/half-circle/round cymbal and a precision 12-needle file set, ideal for shaping wood, metal, mirrors, glass, tiles, ceramics, leather and plastics. Portable Carrying Case---All files are packed in a sturdy, compact and portable package that is easy to store and transport, making them ideal for woodworkers and DIY enthusiasts. Each tool is close to its position to prevent movement and scratching. Fine Grinding and Tightly Connected Handles---Uniform pitch and fine texture increase grinding and save more energy. Use a fully encapsulated connection process at the handle to prevent detachment during use. Handle Design---Ergonomically designed handles for better operation. The stable outline of the file set helps you get the job done better and faster. See more details The 16-piece file cabinet is made of forged T12 alloy steel. The tough teeth of the file set are deeply hardened and coated, providing long-lasting cutting and drilling performance. Includes 16-piece suit, 4 large files, flat/triangle/semi-circle/round cymbal and precision 12-needle file set, ideal for shaping wood, metal, mirrors, glass, tiles, ceramics, leather, etc. Package: 4 * Large set of files 12 * Small set of files 1 * Steel Brush