WA1/WA5

For milling applications ｜ Whisker ceramic for hardened materials

Rapid material removal and long tool life for hard milling

Mill hardened materials (HRC 45-62)

Reduce costs and eliminate grinding

Hardened materials from HRC 45-62
Tool steels, Mold steels, Chilled irons, Powdered metal, Stellite welded overlays, etc.

Cutting conditions

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Insert	DOC(mm) DOC(inch)	HRC 45-55		HRC 55-60		HRC 60-62
Insert	DOC(mm) DOC(inch)	Cutting speed(m/min) Cutting speed(SFM)	Feed(mm/t) Feed(IPT)	Cutting speed(m/min) Cutting speed(SFM)	Feed(mm/t) Feed(IPT)	Cutting speed(m/min) Cutting speed(SFM)	Feed(mm/t) Feed(IPT)
RPGN1204 RPG-43 Type	1.3 .050	250 – 390 850 – 1300	0.12 .005	210-360 700 – 1200	0.08 .0035	170-330 550 – 1100	0.07 .003
RNGN1207 RNG45 Type	2.0 .075	250 – 420 850 – 1400	0.12 005	210-390 700 – 1300	0.10 .004	170-360 550 – 1200	0.07 .003

Note: Speeds and feeds are approximate starting points

July 1, 2025

NTK Cutting Tools is proud to announce the launch of its new CBN grades series, ...

For more information about this product, visit our online e-catalog, or download the catalog/product report