Torque arms assist with positioning tapping tools, die grinders, and assembly tools to improve control and produce precise, repeatable results. They support the weight of the tool and absorb torque to reduce user fatigue, especially when performing repetitive actions. Torque arm tool holders fit onto the end of torque arms and clamp tools in place to prevent them from wobbling or shifting during use. They interchange to hold tools with different grip styles or set tools at a different angle.