【Versatile Chuck】The chuck set is compatible with Dremel rotary tools and is ideal for lightweight accessories such as carbide cutters, sanding rollers, polishing wheels and disc cutters. 【Chuck】Quick Change】Built-in springs prevent accessories from falling or flying away during use, ensuring excellent stability. The chuck quick change can accommodate various accessories from 1/32" to 1/8". 【Metal Nut】Made of: Made of metal, it is sturdy and stable. Plastic nuts available on the market often break during use, but the all-metal nuts solve this quality problem very well. They are more durable and safer than plastic materials. 【Brass Clamp】 Made of high quality brass, it is sturdy and durable. The collet ensures a great improvement in accuracy and holds the bits more tightly. Not only does it stay stable over time; high speeds, but also increases efficiency. Work.