Speed Power Mixer with Mixing Paddle. The Brutus model 21665Q , 2-Speed Power Mixer helps mix your mortar, thin set and grout for installing tiles. Specially designed paddle for fast and effective mixing of viscous materials. High-torque, 2-speed 1,300-Watt motor for powerful mixing can run up to 700 RPM. Chuck kit included for use with any non-threaded mixing paddle.