Sandvik Coromant Silent tools - application guide - Manual (Page 35)

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3. Turning
3. Turning
Main considerations
Clamping stability and correct centre height are two important
factors in order to achieve the right dimension tolerances and
surface finish of your component. Clamp the cylindrical boring bar
in a split sleeve holder, to achieve maximum contact area. With
EasyFix sleeves you will achieve the most stable clamping and
exact centre height positioning. The centre height affects both the
rake angle and cutting force on the tool.
The recommended clamping tolerance is ISO H7 and we also
recommend using split bushing material with a minimum 45 HRC to
avoid permanent deformation. Never use screws in direct contact
with the bar shank as they may damage the bar.
When machining with long overhangs, correct clamping can not be
overvalued.