The NOVA 6115 4″ Pro-Tek Jaws round out the PRO-TEK lineup as the largest Hornung-style offering designed for users tackling large forms or expansive surfaces. With a robust dovetail and serrated grip profile, it prioritizes firm holding power and wide-surface contact. It's the ideal solution for heavy or wide spigot work where maximum stability and control are non-negotiable. The 4″ PRO-TEK Jaw combines strength and precision with a true 4-inch (101.6mm) diameter and a bold dovetail profile that grips large projects with confidence. Deep internal serrations provide exceptional hold for spigots, making it perfect for green and dry wood turning. Precision cut slots ensure a secure grip on square stock, adding versatility and control to every project. Perfect for large and medium sized projects.