Universal Compatibility: Designed specifically for 100 type angle grinders, this adapter can easily convert them into straight grinders or drills. Supports tools with 3mm and 6mm(1/8 & 1/4 inch) shank diameters , compatible with most household and professional angle grinders Quick Installation: No complex tools or additional modifications are required. Installation and function switching can be completed in seconds. Easy to use, suitable for both home users and professional technicians, significantly enhancing the practicality and flexibility of the angle grinder High Strength Carbon Steel: Made of high strength carbon steel, it features excellent wear resistance and pressure resistance. The precision thread design combined ensures a stable connection during high speed operating, ensuring work safety Compact & Portable: The overall structure is small and lightweight, convenient to carry around or store in a toolbox. craft enthusiasts and professional technicians to expand the functionality of angle grinders Versatile Applications: 50mm(2 inch) length conversion head capable of handling grinding, polishing, carving and drilling tasks. It is compatible with various accessories such as chuck drills, wood carving knives and grinding. Color: Black Material: Steel Package Contents: 4 x Collet (2x6mm, 2 x3mm)