GA4030 Breakdown Diagram GA4030 Instruction Manual Specifications Continuous rating input 720W Wheel diameter 100mm (4") Cup wheel diameter 75mm (3") Bore 16mm (5/8") No load speed (rpm) 11,000 Dimensions (L x W x H) 266x117x95mm (10-1/2"x4-5/8"x3-3/4") Net weight 1.7kg (3.7lbs) Power supply cord 2.5m (8.2ft)