Taegutec TNMG 160404R-VF TT8115 CVD Insert Ultra-Fine Steel Finishing (10pcs)

$125.98 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

TaeguTec TNMG 160404R-VF TT8115

Elite CVD Grade for High-Velocity Continuous Steel Finishing

Product Overview

"Which carbide insert is best for achieving a consistent mirror finish on alloy steel during high-speed continuous turning?"

The TaeguTec TNMG 160404R-VF TT8115 is a high-productivity finishing insert designed for ISO P (Steel). The TT8115 grade utilizes an advanced CVD coating technology that provides exceptional thermal stability and wear resistance, allowing for significantly higher cutting speeds compared to standard carbide. The VF (Very Fine) chipbreaker is engineered with a sharp edge and specific geometry to control chips at very shallow depths of cut, preventing the "bird-nesting" effect that ruins surface finishes. With a 0.4mm corner radius, it delivers the extreme dimensional precision required for final-pass machining.

Key Core Advantages

TT8115 Heat Resistance

The specialized CVD layer acts as a thermal shield, protecting the substrate during high-friction continuous cuts.

VF Precision Finishing

Sharp cutting action ensures low cutting forces, resulting in superior surface Ra and high dimensional accuracy.

Longer Tool Life

Excellent crater and flank wear resistance ensures fewer tool changes in high-volume production lines.

Technical Specifications

Insert Code Explanation: TNMG 160404R-VF

T
Triangle
N
Negative
M
Tolerance
G
Hole/Chip
160404
0.4mm Rad
R-VF
RH-Fine
System Designation Inscribed Circle Radius
Metric (ISO) TNMG 160404R-VF 9.525 mm 0.40 mm
Imperial (ANSI) TNMG 331R-VF 3/8" 1/64"

Recommended Cutting Parameters (TT8115)

Material (ISO P) Vc (m/min) fn (mm/rev)
Carbon Steel 280 - 450 0.05 - 0.20
Alloy Steel 220 - 380 0.05 - 0.15

Recommended Holder Pairing


Applications & Compatibility

  • Automotive Finishing: Ideal for high-precision shafts, gears, and engine components.
  • Aerospace Steel: Finishing operations on high-strength alloy steel parts.
  • Continuous Cuts: Best performance in high-speed, non-interrupted turning.
  • Compatibility: Fits all ISO-standard size 16 triangular Right-hand holders (MTJNR, PSSNR, etc.).

TaeguTec Grade Comparison

Grade Coating Primary Application Speed (Vc)
TT8115 CVD Steel Finishing (High Speed) Highest
TT8125 CVD General Finishing / Med Cut Medium-High
TT9225 CVD General Purpose Turning Medium

Why Machinists Choose TT8115?

When high-volume production meets tight tolerances, the TNMG 160404R-VF TT8115 is the tool of choice. The VF chipbreaker is specifically designed to handle the critical final pass. By using the TT8115 grade, you can push your RPMs higher, shortening cycle times without sacrificing the integrity of the cutting edge. This combination ensures that the first part of the day looks exactly like the last—flawless finish, exact dimensions, and maximum efficiency.

★★★★★

"Switched from a competitor to TT8115 for our 4140 finishing. Tool life increased by 40% at the same speeds."

— Jason W., USA
★★★★★

"Exzellente Oberflächengüte bei hohen Schnittgeschwindigkeiten. Sehr stabil."

— Hans G., Germany
★★★★★

"Ottima finitura superficiale. Truciolo perfetto con profondità di passata minima."

— Luigi B., Italy
★★★★☆

"Consistent Ra values across 500+ parts. The VF geometry is very reliable."

— Kenji H., Japan

Frequently Asked Questions

Q: Is TT8115 suitable for interrupted cuts?
A: TT8115 is optimized for high-speed continuous cuts. For heavy interrupted cuts, we recommend the tougher TT8125 grade.
Q: What is the maximum depth of cut for the VF chipbreaker?
A: The VF is a finishing chipbreaker. It performs best at depths of cut (Ap) between 0.1mm and 1.5mm.
Q: Does this work on Stainless Steel?
A: This grade is primarily for Carbon and Alloy Steel (ISO P). For Stainless (ISO M), consider the TT9080 grade.

Industry Tip: If you notice built-up edge (BUE) on steel finishing, increase your cutting speed (Vc). TT8115 is designed to thrive at high temperatures!

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.