TopGroove ™
Feed Values for Grooving Inserts
• Chip control enables true
optimisation and productivity.
• For general-purpose, O-ring,
and circlip grooving applications.
NG-K
NG
TopGroove • NG -K, NG-1L, and NG
• Precision ground for accurate
edge location.
• Can be used in both toolholders
and boring bars.
width of cut [mm]
1
Recommended Starting Feed
NG-1L
TopGroove • NGP and NGD-K
• For deep, O-ring, circlip, and general-
purpose grooving applications.
• Chip geometry for excellent chip control.
NGP
NGD-K
rate
• Positive rake angles.
• Precision ground for accurate
edge location.
• Can be used in both toolholders
and boring bars.
width of cut [mm]
1
Recommended Starting Feed
• Chip geometry for excellent
chip control.
• Precision ground for
accurate edge location.
NR
NR-K
• Can be used in both
toolholders and boring bars.
width of cut [mm]
1
widia.com
Recommended Starting Feed
E49
• For full radius grooving and
turning profi ling applications.
TopGroove • NR and NR-K