Sandvik Coromant Silent tools - application guide - Manual (Page 78)

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4. Boring
CoroBore® 825/826 – finish boring tools
Dampened CoroBore 825 and CoroBore 826 are designed for
finishing operations with excellent surface finish and close
tolerances even in long overhangs, with possibilities to double
the depth of cut and still obtain the same excellent surface finish.
Boring range 23-315 mm (.906-12.402 inch)
Boring depth 6 x BD
Hole tolerance IT6
Cutting fluid Internal
Diameter adjustment: 0.002 mm (0.000079 inch)
Insert types 92°(-2) CoroTurn 107°, 92°(-2) CoroTurn 111°
Radial adjustment of fine boring head:
• Diameter adjustment of 2 microns
• Two different diameter setting mechanisms
•
825 - Nonie scale (dia 23–315 mm, 0.90–12.4 inch)
•
826 - A click for each diameter increment (dia 150–315 mm,
5.90– 12.4 inch)