1.Useful and practical. 2.You can use it for DIY polished engraving, cutting, polishing wood/metal, grinding, removing metal rust and so on. 3.Easy and safe to operate and storage. 4.It can be used for jade carving machine, grinding mill, hanging mill. 5.This electric polishing kits has grinding paste, grinding stone, sandpaper, polishing wheel, polishing paste, nylon brush, steel wire brush, drill connecting rods, etc. Product name: Circular Saw Blade HSS saw blades are suitable for cutting brass, aluminum, thin metal, soft metal, etc. Diamond saw blades are suitable for cutting jade, glass, porcelain, porcelain, ceramic tile, carbide, rock, aluminum and copper. Resin cutting wheels are suittable for cutting all types of metal, cutting bolts or screws or removing rusted or peeling bolts and screws by grooving them. Colour:Photo Color Material:Metal Package Contents: 1 x Tools Set (42pcs) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.