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Kyocera TNMG160404CQ CJ225P
Kyocera TNMG160404CQ CJ225P is a finishing turning insert with CQ chipbreaker and CJ225P CVD carbide grade. Ideal for steel & forged materials, offering excellent wear resistance, superior surface finish and longer tool life. Available in nose radius 0.4 mm (also 0.8mm etc.).
Kyocera TNMG160404CQ CJ225P brings together geometry, grade & coating to deliver high-performance finishing in steel turning:
Hook / Attention Line:
Cut more parts. Stop sooner. With Kyocera TNMG160404CQ-CJ225P, you get longer tool life & finishing-quality surfaces—while slashing cost per component. 💡”
Key Features & Specs
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Geometry: TNMG 160404CQ – 60° triangular, negative insert with hole; radius options like 0.4 mm (rε = 0.4), also available in 0.8 mm etc.
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Chipbreaker: CQ chipbreaker – optimized for finishing; ensures smooth chip flow, consistent surface finish.
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Grade / Coating: CJ225P – CVD-coated carbide (Kyocera Grade) offering excellent wear resistance and thermal stability, especially when turning steels.
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Applications: Primarily turning; ideal for finishing operations on steel and forged steels; works well under stable cutting conditions
Why It’s a Best Seller
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Less downtime due to superior wear resistance → fewer tool changes, more uptime.
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Excellent surface finish thanks to CQ chipbreaker + fine nose radius → saves on downstream polishing / grinding.
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Stable thermal behavior of CJ225P CVD coating → works at higher speeds without premature burnout.
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Multiple edges (six cutting edges per insert) ensure value; each insert goes further.
Industries / Use Cases:
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Automotive: turning shafts, gear blanks, components in steel grades.
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General Engineering / Fabrication: finishing forged parts, steel bars.
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Die & Mold (for steel mold bases, when stable conditions).
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Heavy Machinery, Agricultural Equipment: any jobs needing high surface finishes on steel while maintaining tool life.
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Frequently Asked Questions
This insert excels in turning steels, including forged steel. Its grade CJ225P with CVD coating gives excellent wear resistance and thermal stability under steel cutting.
Common radii include 0.4 mm, 0.8 mm, and sometimes 1.2 mm variants (for different finishes).
Six usable cutting edges per insert (due to negative-triangular design), which helps lower cost per edge / part.
Because of the CQ chipbreaker and fine nose radius, users can expect smoother finishes with minimal vibration, minimal built-up edge. Ideal for finishing cuts. (Exact Ra depends on machine & parameters.)
Savings come from fewer insert changes (longer insert life), better finish (less rework), and reduced scrap. While “cost per piece” will depend on your job size & process, many customers report 20-40% lower overall tooling & rework cost when switching to high grade, coated inserts like CJ225P with CQ geometry.
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