The ergonomic design of the smooth metal surface pen makes cutting, grinding and polishing easy and comfortable, especially for long-term use. There is no need to meet the interface specifications of the electric grinder. As long as your electric grinder or electric drill can be clamped to the size of 3 mm, the flexible shaft can be connected. It can be used with polishing kits, drill bits, wire brushes, milling cutters, flap wheels, mounted stones and grinding wheels. Installation is simple and convenient, just tighten the connector handle onto the electric grinder. A sturdy metal flexible shaft is included so you can use a bit on an object and leave your other hand free to rotate the object when working. 1: This flexible shaft collet is a mini three-jaw collet (the collet and nut are integrated, and there is no need to replace the collet frequently, and the clamping range is 0.3-3.2mm), which eliminates the single clamping range of the previous collet, and needs to be equipped with multiple chucks of different sizes. Now this three-jaw chuck is easy to install, just screw it directly, simple and convenient 2: There is no need to match the interface specifications of the electric grinder. As long as your electric grinder or electric drill can clamp the size of 3.175mm, you can install this flexible shaft. The installation is convenient and simple, just clamp the common handle to the electric grinder and tighten it. 3: The front handle part of the flexible shaft is made of aluminum alloy. 4: A matching electric grinder is required for use. (This flexible shaft does not have a machine, please purchase another machine) Color as shown Quantity delivered: 1 piece becomeveryrich