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-LK

Chip control geometry. General-purpose grooving. O-ring grooving. Circlip grooving. Light turning. 10°/Positive rake angle.

Product Code	Seat	W	RR	T
NG3M350LK KC5025 »	3	3.50	0.32	3.81
NG3M350LK KCU25 »	3	3.50	0.32	3.81
NG4M350LK KC9110 »	4	3.50	0.57	6.35
NG4M350LK KC9320 »	4	3.50	0.57	6.35
NG4M350LK KCU25 »	4	3.50	0.57	6.35

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

NG-RK

Chip control geometry. General-purpose grooving. O-ring grooving. Circlip grooving. Light turning. 10°/Positive rake angle.

Product Code	Seat	W	RR	T
NG3M350RK KC5025 »	3	3.50	0.32	3.81
NG3M350RK KCU25 »	3	3.50	0.32	3.81
NG3M350RK KT315 »	3	3.50	0.32	3.81
NG4M350RK KC9110 »	4	3.50	0.57	6.35
NG4M350RK KC9320 »	4	3.50	0.57	6.35
NG4M350RK KCU25 »	4	3.50	0.57	6.35

NGD-LK

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

Product Code	Seat	W	RR	T
NGD3M350LK KC5010 »	3	3.50	0.32	6.35
NGD3M350LK KC5025 »	3	3.50	0.32	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
NGD3M350RK KC5010 »	3	3.50	0.32	6.35
NGD3M350RK KC5025 »	3	3.50	0.32	6.35

NR-L

Full radius grooving. Turning profiling. Neutral rake angle.

Product Code	Seat	W	RC	T
NR2M175L KC5010 »	2	3.50	1.75	2.79
NR2M175L KC9320 »	2	3.50	1.75	2.79
NR3M175L KC9320 »	3	3.50	1.75	3.81

NR-R

Full radius grooving. Turning profiling. Neutral rake angle.

Product Code	Seat	W	RC	T
NR2M175R KC5025 »	2	3.50	1.75	2.79
NR2M175R KC9320 »	2	3.50	1.75	2.79
NR3M175R KC9320 »	3	3.50	1.75	3.81