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. SPECIFICATIONS: Continuous rating input 840W Wheel Diameter 115 mm (4-1/2″) Max. wheel thickness 6.4mm Spindle thread M14 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) Net weight 2.0 kg