Taegutec TNMG 160404L-VF TT8125 CVD Insert Left-Hand Steel Finishing (10pcs)

$128.48 USD

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

american expressmasterpaypalvisaapple paygoogle payshopify pay
Order in the next [totalHours] hours %M minutes to get it between and
Description

TaeguTec TNMG 160404L-VF TT8125

Precision Left-Hand CVD Carbide for Elite Steel Finishing

Product Overview

"Which left-hand insert offers the best balance of tool life and surface finish for high-precision steel turning?"

The TaeguTec TNMG 160404L-VF TT8125 is a specialized Left-Hand (L) turning insert optimized for ISO P (Steel). The TT8125 grade is a versatile multi-layered CVD coated carbide that delivers exceptional toughness and wear resistance across a wide range of cutting speeds. The VF (Very Fine) chipbreaker is precision-ground to manage chips during light finishing passes, preventing the re-cutting of chips that leads to surface Ra degradation. With a 0.4mm corner radius, this insert is the go-to choice for finishing parts with tight tolerances and complex profiles.

Key Core Advantages

Advanced TT8125 CVD Grade

Multi-layer coating provides a robust thermal barrier, significantly extending tool life in alloy steel and carbon steel applications.

VF Chipbreaking Logic

Specifically engineered for light depths of cut, ensuring a clean break even on "stringy" low-carbon steels.

Dimensional Stability

Low cutting forces and sharp edge geometry prevent workpiece deflection, maintaining strict tolerances across long production runs.

Technical Specifications

Model Breakdown: TNMG 160404L-VF

T
Triangle
N
Negative
M
Tolerance
G
Hole/Chip
160404
0.4 Rad
L-VF
LH Fine
System Full Code I.C. / Thk Radius
Metric (ISO) TNMG 160404L-VF 9.525 / 4.76 mm 0.40 mm
Imperial (ANSI) TNMG 331L-VF 3/8" / 3/16" 1/64"

Recommended Cutting Parameters (TT8125)

Workpiece (ISO P) Vc (m/min) fn (mm/rev)
Low Carbon Steel 200 - 350 0.05 - 0.20
Alloy Steel (e.g. 4140) 160 - 280 0.05 - 0.15

Essential Tooling Pairing


Applications & Device Compatibility

  • Precision Finishing: Final pass on shafts, bushings, and tight-tolerance bores.
  • Complex Geometries: Left-hand orientation allows for specific profiling and back-turning operations.
  • Alloy Steel Specialists: Superior performance on pre-hardened and annealed steels.
  • Compatibility: Industry-standard fit for all 16mm triangular Left-hand toolholders (MTJNL, PSSNL, etc.).

TaeguTec Steel Grade Matrix

Grade Operation Main Benefit Coating
TT8125 General Finishing Versatility & Toughness CVD
TT8115 High-Speed Finishing Heat Resistance CVD
TT9225 General Purpose Process Reliability CVD

Why Professional Machinists Choose TT8125?

Machining steel requires a delicate balance of hardness to resist wear and toughness to prevent chipping. The TNMG 160404L-VF TT8125 is specifically formulated for this purpose. The VF chipbreaker provides elite performance during the most critical stage of production: the final pass. By ensuring the chip is managed and heat is evacuated efficiently, the TT8125 allows for higher cutting speeds without compromising the workpiece surface. For shops running automated lines, the consistency of this grade is a key factor in reducing manual inspections and rework.

★★★★★

"Superior surface finish on our alloy steel shafts. The left-hand orientation was exactly what we needed for our specific CNC setup."

— David R., USA
★★★★★

"Perfekte Spanabfuhr bei geringer Schnitttiefe. TT8125 ist sehr stabil."

— Klaus H., Germany
★★★★★

"Ottima durata del tagliente. La finitura Ra è costante in tutto il lotto."

— Paolo M., Italy
★★★★☆

"Very reliable finishing tool. Highly recommended for automated CNC turning."

— Yuki S., Japan

Frequently Asked Questions

Q: What makes the "L" model different?
A: The "L" stands for Left-Hand. This insert must be used with a Left-Hand (LH) toolholder and is typical for specific CNC configurations or back-turning.
Q: Is TT8125 tougher than TT8115?
A: Yes. TT8125 offers better toughness for general finishing and slight interruptions, whereas TT8115 is geared towards maximum speed in continuous cuts.
Q: What depth of cut is best for the VF chipbreaker?
A: The VF works best at shallow depths of cut, typically between 0.1mm and 1.5mm, for finishing passes.

Selection Tip: If you need versatility across multiple steel types with high-gloss finish requirements, the TT8125 is the safest industrial choice.

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.