The Flex LW 1703 S Wet Stone Grinder is lightweight and easy-to-use with powerful 950 Watts and especially sturdy gears for high torque. Ergonomic shaped grip for safe handling. The GFCI circuit breaker is integrated into the power cord, for optimal flexibility even under mobile use without isolation transformer. Caution: For safety reasons, this unit should be operated only in conjunction with the GFCI operator protection circuit breaker!A classic construction design by FLEX:A tough, heat-resistant, light aluminum die-cast outer shell. On the inside an insulated plastic shell for electrical protection and motor noise reduction. Solid brass carbon holders for optimal heat dissipation.FLEX GFCI operator protection circuit breaker:For electrical safety during wet grinding. Cuts out extremely fast with the required response sensitivity (less than 15 milliseconds). It has reactuation protection at power interruption.