the rotating tool to make work convenient and portable. Advanced handle: reduce vibration and better grip for higher mobility and higher speed Wide range of applications: when the flexible shaft is used with a straight die grinder, it is suitable for polishing, engraving, drilling, cutting, grinding, engraving, forming and grinding. High working efficiency, not easy to heat. Flexible and durable A good gift for DIY enthusiasts, easy to , making work easier, safe and reliable. specification: Connecting rod diameter: 6MM Handle: about 150mm in length description: 1. It is best to install the machine before using the flexible shaft. It will be used after 15 minutes of idling. It will be a bit hot for 1-2 hours at the beginning of , this is the normal wear time 2. When the test tube is working, please straighten it as as possible to extend the service life of the flexible shaft 3. Slight heating of the electric drill does not affect operation 4. The chuck can only be used at low speed. The speed is controlled within 8000 revolutions. colour: gold+silver+black Material: metal size: clamping range: 0.3-6.5mm; handle length about 150mm Package Contents: 1 * handle 1 * flexible shaft 1 * key 1 * wrench Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.