Made of durable hard alloy, so it is a suitable tool to smooth the sharp end and broken edge of glassware; In addition, this diamond glass file is specially designed for fragile items; It is made of solid hard alloy steel, embedded with diamond particles, durable. Easy to carry and store; Removing debris is a fast and effective method, which can immediately fix the glasses and prepare them for use; Rough or sharp surfaces can be greatly smoothed by gentle filing. The round design of cemented carbide abrasive tools is very suitable for repairing small debris and cracks; The round edge design allows you to fix the chip, while the flat side can be used for smoothing; Crystal glass diamond repair file allows you to control small cracks and debris well, so as not to cause more damage in the future. It can be widely used in glass, crystal and porcelain; You can use this crystal glass repair file to repair crystal goblets, ceramic cups or porcelain tea sets. Grinding fragile materials such as glass will become easier; When using metal diamond abrasives, wear protective glasses and always add water or lubricant. Package includes: 1 crystal and glass repair file.