19 Pieces File Set -4 flat/triangle/half-round/round and 14 precise needle files. Ideal for cutting and polishing wood, metal, mirror, glass, ceramic tile, ceramic, leather and plastic. High-carbon Steel Tool - The carbon content of 0.75% is the optimum composition ratio of tools such as hoes/hammers. The fine-grained texture is deeply quenched and coated for long-lasting cutting and boring performance. Fine Molars and Tightly Connected Handles -Uniform pitch of teeth and fine textures can increase the grinding effect and save more effort. Use a fully wrapped connection process at the handle to prevent detachment during use. Multi-functional&Portable Family Essential Set - The bag is convenient for storage and carrying, and is very suitable for carpenters and DIY. It is perfect for daily use of metal grinding, wood boring, leather edging, hand-made and other use scenarios. Premium Service - If you have any problems during using our product. Contact our Professional after-service team via email. after-sale Team will get in touch with you and timely solve your problems.