Boa pipe belt sander highly efficient and resilient motor for more power output vr full wave electronic control tachogenerator constant speed control soft start overload protection and speed selection sanding belt replacement quick and tool free high quality spring mounted sanding arm light alloy with 2 deflection rollers for optimum wrap round on pipes up to max 270additional side handle can be rotated 180 for narrow places swinging the supplementary grip locks the sanding arm to allow work i