Hyde Black & Silver Professional Flexible Hammer Head Joint Knife, 5 in. is crafted with the same high-quality materials as the Black & Silver putty knives, ensuring durability and reliable performance. This joint knife features a full tang construction for added strength and a patented handle design that includes a built-in hammer head, making it easy to set drywall nails without needing a separate tool. Its flexibility allows for smooth application and finishing of joint compounds, making it an essential tool for professional drywall work. Model Number: