Kennametal Top Notch Grooving Inserts

Top Notch™ Grooving Tools and Beyond™ Inserts for Your Shallow Groove and Turn Operations

Primary Application

Top Notch Grooving is the proven solution for high productivity. The Top Notch system provides consistent tool performance, accurate indexing, and superior clamping to provide excellent surface finishing and superior tool life.

Features and Benefits

The Beyond PVD coated grades are designed to cut a variety of workpiece materials.
Rigid clamping securely locks insert in place through the toughest cuts.

Versatile design enables one system to handle O.D. and I.D. grooving, face grooving, back turning, undercutting, and even threading operations.
Chip control inserts provide excellent chip evacuation in grooving, and offer better chip control in multidirectional turning.

Click through to the products to see videos of them in action, and also find their related matching tools.

NG-L

General-purpose grooving. O-ring grooving. Circlip grooving. Neutral rake angle.

Product Code	Seat	W	RR	T
NG3125L K313 »	3	3.18	0.19	3.81
NG3125LEST KD1425 »	3	3.18	0.19	3.81
NG4125L K313 »	4	3.18	0.19	3.81

NOTE Right hand inserts shown, left hand is mirror image.

NG-R

General-purpose grooving. O-ring grooving. Circlip grooving. Neutral rake angle.

Product Code	Seat	W	RR	T
NG3125R K313 »	3	3.18	0.19	3.81
NG3125REST KD1425 »	3	3.18	0.19	3.81
NG4125R K313 »	4	3.18	0.19	3.81

NGD-LK

Chip control geometry. Deep grooving. Light turning. 10°/Positive rake angle.

Product Code	Seat	W	RR	T
NGD3125LK K313 »	3	3.18	0.19	6.35

NOTE Right hand inserts shown, left hand is mirror image.

NGD-RK

Chip control geometry. Deep grooving. Light turning. 10°/Positive rake angle.

Product Code	Seat	W	RR	T
NGD3125RK K313 »	3	3.18	0.19	6.35

NGP-L

General-purpose grooving. O-ring grooving. Circlip grooving. 5°/Positive rake angle.

Product Code	Seat	W	RR	T
NGP2125L KC5410 »	2	3.18	0.19	2.79
NGP3125L KC5410 »	3	3.18	0.19	3.81
NGP3125L KD1425 »	3	3.18	0.19	3.81

NOTE Right hand inserts shown, left hand is mirror image.

NGP-R

General-purpose grooving. O-ring grooving. Circlip grooving. 5°/Positive rake angle.

Product Code	Seat	W	RR	T
NGP2125R KC5410 »	2	3.18	0.19	2.79
NGP3125R KC5410 »	3	3.18	0.19	3.81
NGP3125R KD1425 »	3	3.18	0.19	3.81

NR-L

Full radius grooving. Turning profiling. Neutral rake angle.

Product Code	Seat	W	RC	T
NR3062L K313 »	3	3.18	1.59	3.81

NR-R

Full radius grooving. Turning profiling. Neutral rake angle.

Product Code	Seat	W	RC	T
NR3062R K313 »	3	3.18	1.59	3.81