1. Use the bench drill to wear protective glasses and prescribed protective equipment. Do not wear gauze gloves.

2. When drilling, the workpiece must be clamped and clamped with pliers, clamps or pressure iron. When drilling the workpiece, the board should be placed underneath.

3. It is forbidden to remove iron filings with gauze during drilling, and it is not allowed to blow with mouth or rub with hands.

4. When the drilling starts or the drilling is to be drilled, use light force to prevent the workpiece from rotating or throwing out. If necessary, add water to cool the hole.