3.175mm Flexible Flex Shaft Adapter Attachment Power Drill for Grinder Features: There is no need to match the specifications of the electric grinder interface. As long as your electric grinder or electric drill can be clamped to the 3.175mm(1/8in) size, the flexible shaft can be connected. Ergonomic pen design with smooth metal surface makes easy, comfortable carving, sanding and polishing, especially for a long time use. The installation is convenient and simple, only need the connector handle be clamped to the electric grinder. The shaft connector needs to be connect by electric grinder.(This soft shaft does not have a machine, please choose another machine). It can used with polishing kits, drill bits, wire brushes, countersinks, flap wheels, mounted stones and grinding wheels. Specification: Color: Yellow/Silver Material: Stainless Steel Total Length: 108cm/42inch Clamping range: 0.1mm-3.2mm Shipping Weight: 8.8 ounces/260g Batteries Required: No Package include: 1*3.175mm Flexible Shaft adapter