The Omega ISO 7388/2-A Hollow Pull Stud with O-Ring is a precise, secure clamping solution designed for ISO 7388/2-A tool holders used in through-coolant machining. The hollow design enables coolant to flow through the center, enhancing chip evacuation and keeping the cutting edge cooler for more consistent performance. An integrated O-ring delivers a tight, leak-free connection between the stud and the holder, preserving coolant pressure and preventing leaks in through-coolant systems—helping maintain coolant supply and tool life. Through-Coolant Hollow Core: coolant flows through the stud’s center to the tool interface, improving chip evacuation and cooling for cleaner finishes and longer tool life. Leak‑Free O‑Ring Seal: a reliable seal between stud and holder prevents coolant leakage, maintaining system pressure and reducing maintenance needs. ISO40 Ready, Secure Seating: engineered for ISO40 tool holders to deliver repeatable, stable clamping and quick changeovers in demanding environments. This combination of through-coolant design, dependable sealing, and precise ISO40 compatibility helps you maintain consistent results, minimize downtime, and extend tool life across a variety of machining tasks.