When using a key cutting machine, the following points should be noted: Before use, it is necessary to check the status of the cutting machine to ensure its normal operation. 2. When cutting, the key needs to be tightly attached to the working surface of the cutting machine to ensure the accuracy of the cutting. 3. After use, it is necessary to clean the cutting machine in a timely manner to maintain its cleanliness and hygiene. 4. During use, it is necessary to maintain concentration to avoid accidental sliding and injury of the cutting machine. 5. After use, it is necessary to put the key cutting machine back in its original place to avoid loss or misuse. Overall, the key cutting machine is an efficient, precise, safe, and portable key cutting tool suitable for various types of keys.