Like any tool, bench grinders are not entirely risk-free - fortunately, there is plenty you can do to keep yourself as safe as possible during use: Read the operating manual: Manufacturers know the risks associated with their products, and will offer advice to reduce them as much as possible Wear the correct protection: This entails: safety glasses with side shields, a full face shield, gloves, and work boots. Avoid loose-fitting clothing or jewelry that could become caught in the machine. Ensure Guards are in place: Check the eye shields and spark guards are in place prior to beginning your work. Check the Wheels: If you can see any hairline cracks, it’s not safe to use Get up to Speed: Allow the grinder to reach its operating speed before you start to work, to ensure a constant speed Stand to one side: When you first start the grinder, stand to the side. Defective wheels are most likely to explode upon starting.