TopGroove ™
Custom Order TopGroove Inserts with Chip Control
A-SK Specials
10˚ positive cutting action
• Deep grooving
• Deep face grooving
insert catalogue number
right hand left hand
NGD3-R-SK NGD3-L-SK
or or
1,45–1,75 corner radii range
R1 and R2
.008–.033 3,18
2,26–2,57* .008–.033 6,35
3,05–3,35* .008–.033 6,35
4,67–4,98* .046–.071 6,35
width range W
E
NFD3-R-SK NFD3-L-SK NGD4-R-SK NG4-L-SK 3,05–3,35* .008–.033 6,35
or or 4,57–4,98* .046–.071 9,53
NFD4-R-SK NF4-L-SK 6,22–6,53* .046–.071 12,70
T
grades
4,95
Carbide grades
quoted upon request.
See page E47.
6,48
*One cutting edge.
NG-SK, NF-SK, NGD-SK, and NFD-SK inserts may be specially
ordered within the specifi cations listed in the above charts.
Order example: NF3R-SK W = .090,
R1 = .010, R2 = .010, grade TN6010 ™ .
Unless otherwise specifi ed, a standard tolerance of ±0,03mm
on width (W) will be applied, and a standard tolerance of
±0,06mm on radii (R1 and R2) will be applied.
If deeper cutting depth (E) is required, please specify. Refer to
the application drawing and charts for maximum face groove
depths and minimum face groove diameters.
In addition to the guidelines above, full radius face groove inserts
may be quoted. Under certain conditions, chip control performance
may vary from standard insert styles.
C1-SK Specials
• Groove and chamfer
insert catalogue number
right hand left hand width range W corner radii range
R1 and R2 E T grades
NB2-R-K NB2-L-K 1,19–3,18 0,13–0,38 2,54 3,81 Carbide grades
quoted upon request.
NB3-R-K NB3-L-K 2,39–4,32 0,13–0,64 3,81 4,95
See page E47.
widia.com
E83
NOTE: The above insert style is for simultaneous groove and chamfer operations with chip control.