Monoblock steel boring bar for WN__0604 or WN__0804 insert with internal cooling.
All Cool Tool boring bars are designed for the boring bar holder in our High Cool Revolution program with a 4xD clamping length and a 5xD projection (turning length).
-Have a maximum flow rate
-Improved chip breaking due to high-pressure cooling directly into the chip
-Longer service life
-Better chip removal