Engineered for a broad range of grinding, cutting and deburring applications, the 4.5 In./ 5 In. 900 watt WP9-125 Quick compact angle grinder features a smaller, ergonomically designed body with integrated non-locking paddle switch for increased safety and more comfort, the quickest wheel change system available, and a tool-free quick-positioning guard that allows for fast change-over from grinding to cutting. The powerful LongLife 8.5 Amp, AC/DC, 10,500 rpm motor includes advanced designs to optimize air flow for cooler operation and extend longevity in harsh environments. The S-Automatic safety slip clutch helps to prevent kick back if a disc or wheel should jam.