GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingDrilling ToolTechnical Reference 1 2 Thru-coolant holder system 3 High pressure coolant is supplied through the holder to facilitate smooth chip evacuation, improved chip breaking and reducedmachine down-time 4 External coolant supply at normal pressure High pressure coolant (7 MPa) 5 6 Coolant jets from two outlets ensure high cutting efficiency and extended tool life Directly to the cutting edgeReliable chip control 7 Reduces crater and notch wears 8 Excessive wear with High pressure coolantexternal coolant supply(7 MPa)(at normal pressure)Excessive crater wear withHigh pressure coolantexternal coolant supply(7 MPa)(at normal pressure)9 Reference pages: 3-13, 3-15, 3-19, 3-20, 3-23, 3-25, 3-27 - 3-29, 3-31, 3-33, 3-35, 3-43, 3-47, 3-49, 3-51, 3-54, 3-56 3-9