The CP3119 straight wheel grinders range consists of 6 models, with max wheel capacity from 2.5x1/2x3/8' (63x13x9.52 mm) to 4x1/2x3/8' (100x13x9.52 mm) and a 1.2 hp (900 W) powerful motor. CP3019 straight Grinder range free speed is from 12,000 to 18,000 rotations per minute.