The Sandvik Coromant R566.4KFC-403227-16 T-Max U-Lock Head is a high-quality indexable threading toolholder designed for internal threading applications. With the renowned Sandvik Coromant brand, this toolholder provides precision and durability for CNC, metalworking, and manufacturing processes. The U-Lock head ensures a secure and reliable attachment for efficient and accurate threading operations. Ideal for industrial use, this indexable toolholder is a reliable choice for professionals in need of precision toolholding solutions.