Portable Grinder Operating ProceduresPortable Grinder Operating Procedures. Using Portable Grinders Safely. Like all power tools, portable grinders can present safety concerns, including flying.safety procedure grinding,Safe Operating Procedure - Environmental Health & SafetySafe Operating Procedure. (Revised 3/12). ABRASIVE . safe distance (e.g., a minimum of 35 feet) away from the grinding operation. Sparks can ignite debris.