The Walboard Cornerbead Tool 1-1/4" 071-002 CO-2A with Mallet is a specialized tool designed specifically for use with Walboard drywall. This tool helps to create clean, precise corners in drywall projects, ensuring professional results. The 1-1/4" size allows for easy handling and maneuverability, while the included mallet provides additional force for efficient use. Ideal for business and industrial settings, this Walboard Cornerbead Tool is a reliable and essential tool for any drywall project.