QIC Tools square insert knives with a radius edge are expertly crafted for planer heads, providing superior cutting performance and smooth finishes in a variety of woodworking applications. Made from premium micro-grain carbide, these knives offer long-lasting sharpness and durability for both softwoods and hardwoods. The 4-sided, reversible design extends the life of the insert, allowing you to flip the knife when an edge becomes dull. The radius edge ensures a clean cut with reduced tear-out, delivering consistent and smooth results for your woodworking projects. Key Features: Square shape with radius cutting edges 4-sided, reversible design for extended tool life High-durability micro-grain carbide construction Radius edge for smooth cuts with minimal tear-out Specifically designed for planer heads Trusted performance from QIC Tools