No load Speed: 19800RPM. 1 x 8 Teeth 550 DC Motor. Type: Micro Motor. Integrated motor, exquisite details, perfect fit, serviceable. Product Weight: 220 G / 7.76 Ounces. Fit for WORX 50027484 WU390 WX390 WX390.1 WX390.31 WU390.9 WX390.9, fit fo Rock Well H3 QN147Y12, etc.
