ECO 4 CUT

For Grooving | CNC automatic lathe

Economical 4-corner grooving insert with a rigid clamping design for high-precision machining.

4-cutting-edge inserts featuring a high-rigidity clamping system for stable and precise machining, long tool life, and excellent cost efficiency

CW : 0.43 ～ 3.0mm .017 ～ .12 inch

Through-coolant toolholders deliver excellent chip control
by directing coolant precisely to the cutting edge, reducing
wear and extending tool life.

With Internal Coolant

Without Internal Coolant

Material : SUS304 304SS V_c = 120m/min 400 SFM f = 0.1mm/rev .004 IPR

Recommended cutting conditions

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Classification
Workpiece material	HRSA	Cobalt-Chromium Alloy	Titanium (Alloy)	Difficult-to-cut stainless steel	Free-cutting stainless steel	Alloy steel	Carbon steel
Representative workpiece material	Inco718 5589 Hastelloy MP35N 5844	ASTM F-75	Ti-6Al-4V AMS R56400	SUS316L 316LSS 17-4PH SUS304 304SS	SUS303 303SS SUS430F 430FSS	SCM435 4137 SCr420 5120	S10C 1010 S45C 1045
NTK’s Primary Recommended insert grade	650			650 / ST4		650
Cutting speed (m/min) Cutting speed (SFM)	20 – 60 70 – 200	30 – 80 100 – 260		50 – 120 160 – 400		80 – 180 260 – 600
Feed (mm/rev) Feed (IPR)	0.01 – 0.08 .0004 – .0031	0.01 – 0.08 .0004 – .0031	0.01 – 0.08 .0004 – .0031	0.01 – 0.08 .0004 – .0031	0.03 – 0.10 .0012 – .004	0.01 – 0.08 .0004 – .0031	0.03 – 0.10 .0012 – .004