FEATURES: High performance motor with enough power for masonry cutting and high heat resistance Labyrinth construction protects all ball bearings from dust and debris Small circumference barrel grip for easy handling Shaft lock for easy wheel changes Easier repairing of gear section assembled with key INCLUDES: Depressed Center Wheel, Lock Nut Wrench, Grip SPECIFICATIONS: Continuous Rating Input 840W Wheel Diameter 115 mm (4-1/2″) No Load Speed (RPM) 11,000 Vibration Level Surface Grinding: 7.5 m/s² Disc Sanding: 2.5 m/s² or less Sound Pressure Level 86 dB(A) Sound Power Level 97 dB(A) Dimensions (L x W x H) 271x130x106 mm (10-5/8″x5-1/8″x4-3/16″) Net Weight 1.7 – 2.4 kg (3.8 – 5.3 lbs) Power Supply Cord 2.5 m (8.2 ft.)