Description: Fit directly into the chuck of any cordless or electric power drill. Using a flexible drive enables you to take your power tool to the most inaccessible places. It may be used with polishing kits, drill bits, wire brushes, countersinks, flap wheels, mounted -stones and grinding wheels. Easy to install, just need to clip the connector handle grip to the mill. It is supporting electric grinder or electric drill. (The shaft without the machine) Specification: Material: Metal Color: Black, Silver Shaft Length: Approx. 890mm/ 35.04inch Shaft Diameter: Approx. 9.4mm/ 0.37inch Axis Length: Approx. 790mm/ 31.10inch Axis Diameter: Approx. 4mm/ 0.16inch Package Includes: 1 Piece Flex Shaft Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test