ISOTURN TOOLS USER GUIDE For most of the tools that have a square shank, a frontal Plug coolant hole has been added underneath the seat of the Screw Mounting Screw insert to enable coolant flow directed to the flank area of the insert. The frontal coolant jet increases the amount of Nozzle Tube coolant to the cutting zone. By closing or opening a screw, it acts as a valve that monitors the rate of coolant flow. Housing O-Ring Frontal Coolant Hole Frontal Coolant Hole Frontal Coolant Channel SLAN-15-TANG JHP tools for LNMX 1506… inserts, On/Off Screw SVJCR/L-16-JHP for VCMT 1604.. inserts and all high-pressire coolant tools with CAMFIX shanks Copper Seal do not have the frontal cooling channel option. Washer 1/8” 1/8" BSP Adaptation Nipple Frontal Coolant Hole Frontal Coolant On/Off Screw H.P. Coolant Hose 80 ISCAR