Viking Arm is a manual lifting tool that helps increase productivity on the job site. Featuring a simple locking and unlocking mechanism with a smooth, controlled lowering action, it helps maintain precise alignment during installation. Ideal for supporting and stabilizing a variety of structures including decking, flooring and drywall, doors, windows, cabinets and porches. Made of stainless steel, it is strong, durable, powerful and built to last. The tool has a working range of 0.24 to 8.46 inches, allowing for precise interior and exterior installations. It also holds up to 330 pounds and has mounting holes for increased stability and safety.