POWERTEC 90° Screw Clamp The 90° Screw Clamp is a versatile and powerful tool that can be used for a variety of woodworking, metalworking and other light-duty clamping applications. It fits 3/4 in. bench dog holes and can be smoothly rotated for free positioning. It is ideal for clamping components at a vertical 90° angle and it can be smoothly rotated for free positioning. Features The 90° screw clamp is equipped with an adjustable stop collar with an internal O ring, which allows for easy in and out adjustment. The swivel bars also have an O ring that provides slight pressure to the clamp bar, making it easy to grip and comfortable to use. Clamp Down on Professional Looking Results Our screw clamp provides precise and powerful clamping of components at a 90° angle. It can be used to clamp your wood workpieces together at a perfect 90° angle. This is a great way to ensure that your work is accurate and that your final results look professional. Application Versatility The screw clamp can be used for a variety of woodworking, metalworking and other light-duty clamping applications, including miters, butt joints, picture frames, welding, fabrication and assembly. Material: Steel.