Engineered for heavy duty grinding and cutting, the 6 In. 1550 watt WP 13-150 Quick RT Paddle Switch Angle Grinder uses a powerful LongLife 13.5 Amp, 9,600 rpm motor that includes advanced designs to optimize air flow for cooler operation and extend longevity in harsh environments. A Quick change wheel system allows the fastest wheel changes available. The anti-vibration side handle reduces vibration for improved comfort and the S-Automatic safety slip clutch boosts safety by helping to prevent kick back if a wheel should jam. Electronic features include speed stabilization for highest productivity, overload protection, power interruption protection and soft start.