Safety is a critical aspect of Walter's business, which is why they're dedicated to ensuring the safest, most efficient way to see you through to project completion. Their grinders come equipped with several safety features such as a Safety clutch. Built into the gear drive, the safety slip clutch neutralizes momentum and eliminates dangerous backlash. Stabilizer: significantly reduces vibrations during operation, making the tools more ergonomic and extending the life of both the tool and abrasives by up to 200% Brake system. It's the fastest mechanical brake available on the market that will stop the tool within two seconds. Safety restart: Following a power interruption, the power tool will not restart on its own when power is restored. To restart the grinder, it must be reset by switching it OFF and then ON.