ZCC-CT TNMG160404R-ZC YBC252 CVD Coated Carbide Turning Insert | 10 Pcs/Box
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ZCC-CT TNMG160404R-ZC YBC252 Inserts
High-Speed Steel Semi-Finishing & Profiling | YBC252 CVD Coated Grade | Box of 10 Pcs
"Which negative triangular CVD-coated carbide insert with a 0.4mm corner radius and right-hand ZC chipbreaker is best for low-force semi-finishing, smooth outer diameter profiling, and high-speed machining of carbon steels and alloy steels?"
The ZCC-CT TNMG160404R-ZC YBC252 is a precision-engineered, double-sided, negative-rake 60° triangular turning insert built for high-speed semi-finishing, light roughing, and external/internal profiling across carbon steels (ISO P) and alloy steels. Powered by ZCC-CT's versatile YBC252 multi-layer CVD coated carbide grade—combining a tough gradient-sintered tungsten carbide substrate with a thick, heat-resistant TiCN-Al2O3 chemical vapor deposition (CVD) coating—this insert delivers exceptional thermal barrier properties and resistance against flank wear and crater wear under elevated cutting temperatures and continuous-to-light-interrupted cuts. Unlike thin PVD coatings optimized for lower-speed stainless steel machining, thick multi-layer CVD coatings on YBC252 provide superior thermal insulation during high-velocity steel turning. Paired with a crisp 0.4mm nose radius and the dedicated right-hand ZC positive chipbreaker, it minimizes cutting resistance, prevents chatter on slender shafts, and directs chips smoothly away from the workpiece. Whether you are exploring the full ZCC-CT brand catalog, visiting our ZCC-CT technical hub, browsing ZCC-CT CNC carbide inserts and milling tools, or comparing negative turning inserts and positive turning inserts, the TNMG160404R-ZC YBC252 guarantees reliable shop floor productivity. Expand your tooling selection across ZCC-CT TNMG, 60° triangular inserts, and ZCC-CT TNMX collections, or compare global brands via TaeguTec TNMG, Korloy TNMG, and Tungaloy TNMG/TNMA catalogs. For engineering guidance, review our resources on grade cross-reference, chipbreaker families, carbide insert nose radius, stainless steel speeds and feeds, how to choose turning insert geometry, what is a turning holder, inserts by material, inserts by operation, and top global CNC insert brands.
Core Engineering Advantages
YBC252 Multi-Layer CVD Grade
Thick TiCN-Al2O3 chemical vapor deposition (CVD) coating over a tough gradient substrate delivers superior heat resistance and flank wear protection in steel turning.
Right-Hand ZC Chipbreaker
Directional positive rake geometry reduces cutting forces and ensures smooth chip evacuation during semi-finishing and profiling.
0.4mm Radius & 60° Triangle Economy
Double-sided 60° triangular design delivers 6 indexable cutting edges with crisp 0.4mm radius for fine corner detailing and low radial force.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | TNMG 160404R-ZC | TNMG 331R-ZC (Approx.) |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Cutting Edge Length (L) | 16.50 mm | 0.6496" (~21/32") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.40 mm (Right-Hand) | 0.0157" (approx. 1/64") |
| Grade & Coating | YBC252 (Multi-Layer CVD Coated Carbide) | Steel Turning CVD Coated Grade |
Recommended Cutting Parameters
*Values are starting recommendations for semi-finishing and outer diameter profiling in steels with YBC252 CVD grade.
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (Ap) |
|---|---|---|---|
| Carbon & Low Alloy Steels (P - 1045 / 4140) | 190 - 340 m/min | 0.08 - 0.25 mm/rev | 0.40 - 2.50 mm |
| Alloy Steels & Structural Steels | 170 - 300 m/min | 0.07 - 0.22 mm/rev | 0.40 - 2.20 mm |
| Pre-Hardened Steels (< 38 HRC) | 130 - 240 m/min | 0.06 - 0.20 mm/rev | 0.30 - 2.00 mm |
Compatible Tool Holders & Boring Bars
Pair these precision 16-size negative triangular inserts with rigid external turning toolholders and internal boring bars including the MTQNR2020K16 90° Turning Tool Holder, MTQNR2525M16 External Turning Tool Holder, MTWNR2020K16 External Turning Holder, and Beyond S16Q-STFNR16 Internal Boring Bar.
Browse complete holder families via Beyond screw-type external turning tool holders and screw-on system boring bars.
Industrial Applications
- High-Speed Steel Semi-Finishing & OD/ID Profiling: Sharp positive ZC geometry reduces radial forces and delivers crisp corner profiles on carbon and alloy steel shafts, gears, and sleeves.
- General-Purpose Steel Turning: Multi-layer CVD YBC252 grade balances toughness and heat resistance for continuous turning and light interrupted cuts.
- Multi-Brand Tooling Consolidation: Fully compatible with standard ISO negative 60° triangular turning toolholders across ZCC-CT TNMG, TaeguTec TNMG, and Korloy TNMG systems.
ZCC-CT Grade Selection Matrix
Selecting the optimal ZCC-CT turning grade for negative inserts:
- YBC252 (Featured - Multi-Layer CVD Coated Grade): Versatile TiCN-Al2O3 CVD coated carbide engineered for general-purpose turning, semi-finishing, and medium machining in carbon steels and alloy steels (ISO P) under variable cutting speeds.
- YBC251 (CVD Coated High-Speed Grade): Wear-resistant CVD coated carbide grade optimized for higher cutting speeds and continuous turning in steels.
- YBG205 (Nano-PVD Coated Grade): Specialized TiAlN nano-PVD coated grade designed for finishing and semi-finishing in stainless steels (ISO M) and heat-resistant superalloys (ISO S).
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Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: When should I choose CVD grade YBC252 instead of PVD grades like YBG205?
A: Choose YBC252 multi-layer CVD coated inserts for high-speed turning and semi-finishing in carbon and alloy steels (ISO P), where thick thermal barrier layers prevent crater and flank wear. Choose PVD grade YBG205 for stainless steels (ISO M) and superalloys.
Q: What does the "R-ZC" designation mean on TNMG160404R-ZC?
A: The "R" indicates a right-hand directional geometry, and "ZC" is ZCC-CT's specialized positive chipbreaker designed for low cutting forces, reduced chatter, and controlled chip evacuation during semi-finishing.
Q: How many cutting edges are available on each TNMG1604 insert?
A: Being a double-sided negative 60° triangular insert, TNMG 1604 provides 6 indexable cutting edges (3 on the top face and 3 on the bottom face), maximizing tool economy.
Need Help With ZCC·CT Inserts?
Looking for a ZCC·CT equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This ZCC·CT insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
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