Instructions for use: Align the flexible shaft as far as possible to extend its service life. Function: It can be used in an electric drill or an electric grinder. It can also be used for grinding, cutting, drilling, polishing, engraving, etc. Do not use a coarse grinding head. Axle length: 97 cm. 4 mm soft shaft. 0.3-6.5 mm collet. Handle diameter: 6 mm. Color: picture color. Material: metal. Package contents: 1 x flexible shaft, 1 x handle, 1 x wrench. Only the above package content, other products are not included. Note: Due to lighting and screen settings, the color of the product in the photo and the actual product may be slightly different. The size of the item may vary by +/- 1 to 3 cm.