Feature: 1. MAKE WORK HANDY: Extension chuck adapter is connected with rotating tools, flexible shaft makes work handy 2. PROVIDE BETTER GRIP: Advanced handle can reduce vibration to prevent fatigue, and provide better grip for higher maneuverability and higher speed 3. USED FOR POLISHING, ENGRAVING, DRILLING, CUTTING: When the flexible shaft is used in conjunction with a straight die grinder, can be used for polishing, engraving, drilling, cutting, grinding, shaping, sanding, etc. 4. HIGH WORKING EFFICIENCY: The shaft adopts good quality materials and perfect craftsmanship, which has high working efficiency and not easy to heat up 5. NOT EASY TO SHAKE: The shaft joint has high concentricity, the accurate carving is not easy to shake, the operation is stable, and the safety is high Specification: Item Type: Flex Shaft Extension Chuck Material: Rubber + ABS + aluminum alloy Purpose: Suitable for electric drill rotary grinder tools Chuck Clamping Range: Approx. 0.3 ~ 6.5mm / 0.01 ~ 0.26in Joint Diameter: Approx. 6mm / 0.24in Maximum Speed: 10000 RPM. Package List: 1 x Flexible Shaft1 x Handle2 x Wrench Note: 1. Straighten the pipe as much as possible when working to extend the service life of the flexible shaft.2. It is best to install the machine before using the flexible shaft, which can be used after 15 minutes idling at low speed. There will be a little heating for 1‑2 hours after the first use, which is a normal wear and tear period.