Usage Tips:Drill Chuck Collet Set for Dremel Drill Bit Chuck Shank Rotary Tool Quick Change Features: 【Wide Application】The drill chuck collet set is compatible with Dremel rotary tools and is ideal for light accessories such as carbide burrs, sanding drums, polishing wheels, wire and bristle brushes and cut-off wheels. 【Quick-change drill chuck】The built-in springs ensure a better connection and prevent the accessories from falling or flying out during use, providing excellent stability. The keyless drill chuck can accommodate various accessories from 1/32“ to 1/8” shank size. 【Metal Nut】Made of metal material, sturdy and stable. The plastic nut on the market often break during use, but the all-metal nut solve this quality problem very well. They are more durable and safer than plastic materials. 【Brass Collet】Made of brass, it is hard-wearing and durable. The brass collet offers a great improvement in precision and holds fine bits tighter.