Breaking the routine of a multi-purpose machine Before using the flexible shaft, it is best to install the machine, open the low-speed idle 15 minutes after use, so that the parts inside the robo-in, 1-2 hours after the start of use will have a little heat. So that the parts inside the robo-in, the beginning of the use of 1-2 hours there will be a little heat, it is a normal phenomenon during the period of robo-in, robo-in will be OK. It is a normal phenomenon during the period of theft, theft is fine. Preferred metal housing Gold aluminium alloy casing, high strength, corrosion resistance High hardness plated stainless steel, not easily oxidised High temperature unheated bearing High precision, process use Non-drop clamp Cola 1. Insert the flexible shaft with the protrusion aligned. The internal space of the tail, just after the force can be 2. Replace the handle by holding the handle with one hand and Hold the flexible shaft and pull it out forcefully. Connecting rod 0.236 in diameter, basically can be clamped 0.236" electric grinder, electric drill can be used. This flexible shaft Packing list: 1 flexible shaft 1 handle 2 keys Specifications: Article type: Flexible shaft extension chuck Material: Rubber + ABS + Aluminium alloy Purpose: Suitable for electric drill rotary grinder tools Chuck clamping range: Approx. 0.3 ~ 0.256 in / 0.01 ~ 0.26 in. Joint diameter: Approx. 0.24 in / 0.01 ~ 0.26 inch Maximum speed: 10000 rpm 1. Straighten the pipe as much as possible when working to prolong the life of the flexible shaft. 2. 15 minutes of idling at low speed is sufficient for use. There will be a warm-up period of 1-2 hours after first use.