The Jacobs CAT V 50 Shell/Face mill tool holder is designed to hold up to a 2-Inch shank cutting tool. It has a 4-Inch projection and is prebalanced to 8,000 RPM. The Jacobs CAT V 50 Shell/Face mill tool holder is designed for heavy duty cutting and face milling. The Jacobs CAT V 50 Shell/Face mill tool holder provides more accurate, rigid tool holder-to-spindle mount tapers. The taper is grounded to AT3. Easy changes and setup make the CAT V 50 Shell/Face mill tool holder a low maintenance product. The through spindle coolant is standard for Jacobs Shell/Face mill tool holders and the Jacobs CAT V 50 Shell/Face mill tool holder comes with a one year factory warranty