Features and Benefits:�Internal governor maximizes speed under load, thus increasing your productivity�Safety Throttle Lever to prevent accidental start ups�Safety Disc cover for protection�Aluminum alloy housing is rugged yet lightweight�Powerful high performance motor for fast, efficient grinding in tight quarters�Free speed 12,000rpm�Hardened and ground spiral bevel gears for low vibration�Dead Handle Mounts on either side for right or left hand operationSP-1257 is perfect choices for high performance material removal. The 5" ( 125MM) respectively, air angle grinders combine a unique internal governor with a powerful 1.00 hp motor, to give you the best-in-class power to weight ratio grinders that will maximize your rate of material removal.