Taegutec TNMG 160408R-VF TT8115 CVD Insert High-Speed 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 160408R-VF TT8115

Premium CVD Carbide for High-Speed Precision Steel Finishing

Product Overview

"Which insert is most suitable for high-speed, continuous finishing on alloy steel when I need both surface gloss and long tool life?"

The TaeguTec TNMG 160408R-VF TT8115 is the ultimate solution for ISO P (Steel) finishing. The TT8115 grade features a sophisticated CVD coating with a thick, heat-resistant Alumina (Al2O3) layer that excels in high-temperature cutting zones, typical of high-velocity turning. The VF (Very Fine) chipbreaker is specialized for light depths of cut, ensuring excellent chip breaking and preventing surface scratches. With its 0.8mm corner radius, this insert provides an ideal balance between edge strength and a high-precision surface finish (Ra).

Key Core Advantages

TT8115 Heat Resistance

Advanced CVD technology allows for higher Vc (cutting speeds) while maintaining edge integrity under intense heat.

VF Precision Geometry

Sharp cutting action designed specifically for very fine finishing, providing optimal chip control even at low feed rates.

Mirror-Like Finish

The combined effect of the TT8115's lubricity and the 0.8mm radius results in high-gloss surface integrity on alloy steels.

Technical Specifications

Insert Designation Decoding: TNMG 160408R-VF

T
Triangle
N
Negative
M
Tolerance
G
Hole/Chip
160408
0.8mm Rad
R-VF
RH-Fine
Unit System Designation I.C. / Thickness Corner Radius
Metric (ISO) TNMG 160408R-VF 9.525 / 4.76 mm 0.80 mm
Imperial (ANSI) TNMG 332R-VF 3/8" / 3/16" 1/32"

Recommended Cutting Parameters (TT8115)

Material (ISO P) Vc (m/min) fn (mm/rev)
Mild Steel 280 - 450 0.10 - 0.25
Alloy Steel (e.g. 4140) 220 - 380 0.10 - 0.20

Recommended Toolholder Pairing


Applications & Compatibility

  • Automotive Components: Finishing of precision gears, shafts, and transmission parts.
  • Mechanical Engineering: General purpose finishing of carbon and alloy steel housings.
  • Aerospace Steel: High-velocity turning of high-strength structural steel.
  • Compatibility: Standard ISO size 16 triangular Right-hand pockets (MTJNR, PSSNR, etc.).

TaeguTec Grade Comparison (Steel Focus)

Grade Primary Use Coating Speed (Vc) Capability
TT8115 High-Speed Finishing CVD Highest
TT8125 General Purpose / Med-Finishing CVD Medium-High
TT9225 General Roughing / Medium CVD Medium

Why Choose TaeguTec TT8115?

In the world of high-speed CNC turning, heat is the ultimate enemy. The TNMG 160408R-VF TT8115 is designed to turn that heat into productivity. By utilizing a high-toughness substrate combined with a premier CVD coating, this insert provides a superior thermal barrier, allowing you to push your RPMs higher and cycle times lower. The VF chipbreaker specifically addresses the challenges of "stringy" chips during finishing, breaking them into manageable pieces even at shallow depths. If you require zero-defect surface Ra and stability in long production runs, the TT8115 is your industrial standard.

★★★★★

"Exceptional tool life on 1045 steel. We increased cutting speed by 25% with no drop in surface quality."

— Steven B., USA
★★★★★

"Hervorragende Oberflächengüte. Der VF-Spanbrecher ist sehr zuverlässig bei Schlichtarbeiten."

— Markus T., Germany
★★★★★

"Finitura superficiale incredibile. Ideale per lavorazioni continue ad alta velocità."

— Antonio M., Italy
★★★★☆

"Stable wear pattern. Great for automated production lines."

— Takashi Y., Japan

Frequently Asked Questions

Q: Is the TT8115 suitable for interrupted cuts?
A: TT8115 is optimized for high-speed continuous cuts. For heavy interrupted cuts in steel, 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 2.0mm.
Q: Can this be used on Stainless Steel?
A: This grade is primarily for Carbon and Alloy Steel (ISO P). For Stainless (ISO M), consider the TT9080 grade.

Machinist Tip: If you encounter built-up edge (BUE) on steel finishing, increase your cutting speed (Vc) to utilize the full thermal potential of the TT8115 grade!

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.