【Wide Application】The drill chuck collet set is compatible with Dremel rotary tools and is ideal for lightweight accessories such as carbide burrs, sanding drums, polishing wheels, wire and bristle brushes, and cutting wheels. 【Quick Change Drill Chuck】Built-in springs ensure a better connection and prevent accessories from falling or flying off during use, providing excellent stability. The keyless chuck can accommodate various shank size accessories from 1/32" to 1/8". 【Metal Nut】Made of metal material, sturdy and stable. Plastic nuts on the market often break during use, but all-metal nuts solve this quality problem very well. They are more durable and safer than plastic materials. 【Brass Collet】Made of high-quality brass, it is durable and long-lasting. The brass collet provides a great improvement in accuracy and holds fine bits more firmly. It not only remains stable at high speed, but also increases work efficiency. 【15-Piece Drill Chuck Set】Our set includes 1 keyless drill