Taegutec TNMG 160404 MT TT8020 Insert for Stainless & Superalloy Turning (10pcs)

$125.48 USD

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

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Description

TaeguTec TNMG 160404 MT TT8020

The Industry Benchmark for Tough Stainless Steel & HRSA Machining

Product Overview

"Which insert grade is most reliable for interrupted cuts in 316 Stainless Steel and Inconel without premature edge failure?"

The TaeguTec TNMG 160404 MT TT8020 is the definitive solution for high-stress turning environments. Utilizing a specialized PVD coating over a high-toughness substrate, the TT8020 grade provides unparalleled resistance to thermal cracking and notch wear. The MT Chipbreaker is designed for medium-to-finish turning, offering a positive rake angle that slices through "gummy" materials like stainless steel and titanium, effectively reducing work hardening and tool pressure. This is the go-to insert for CNC operators seeking stability in ISO M (Stainless) and ISO S (Exotics) machining.

Core Performance Features

TT8020 PVD Technology

Engineered for high-temperature strength and extreme toughness. Optimized for interrupted cuts where CVD grades often fail.

MT Finishing Geometry

A sharp, positive cutting edge that minimizes cutting heat and ensures excellent surface Ra values on difficult alloys.

Exceptional Reliability

The TNMG triangular shape offers 6 stable cutting edges, providing maximum productivity and cost-per-part efficiency.

Technical Specifications

Model Breakdown: TNMG 160404 MT

T
Triangle
N
Negative
M
Tolerance
G
Hole/Chip
160404
Size/Rad
MT
Chipbreaker
Feature Metric Model Imperial Equivalent
Standard Designation TNMG 160404 MT TNMG 331 MT
I.C. / Thickness 9.525 mm / 4.76 mm 3/8" / 3/16"
Corner Radius 0.40 mm 1/64" (0.016")

Recommended Cutting Parameters (TT8020)

Material Group Vc (m/min) fn (mm/rev)
Stainless Steel (ISO M) 80 - 180 0.08 - 0.25
Exotic Alloys (ISO S) 30 - 60 0.05 - 0.20

System Integration


Applications & Compatibility

  • Precision Finishing: Ideal for critical components in Aerospace and Medical industries.
  • Tough Alloys: Optimized for Inconel, Titanium, and duplex stainless steels.
  • Interrupted Machining: Specifically designed for unstable setups or non-continuous cuts.
  • Compatibility: Fits all standard ISO/ANSI toolholders using the 1604/33x insert size.

TaeguTec Grade Selector

Grade Technology Best For Edge Sharpness
TT8020 PVD Tough Interrupted / Stainless High
TT9080 PVD Universal General Purpose Moderate
CT3000 Cermet Mirror Finish Steel Ultra High

Why Choose TaeguTec TT8020?

Machining stainless steel shouldn't be a constant battle with tool failure. TaeguTec's TT8020 grade is engineered to absorb the thermal and mechanical shocks inherent in stainless turning, allowing your CNC machines to run longer with fewer tool changes and tighter tolerances.

★★★★★

"Changed our production cycle on 316L. The TT8020 handles the heat significantly better than our previous grade."

— Mark J., USA
★★★★★

"Perfekt für Inconel-Drehen. Die Standzeit ist beeindruckend, selbst bei unterbrochenem Schnitt."

— Stefan W., Germany
★★★★★

"Ottimo prodotto per acciai inossidabili. Finitura superficiale eccellente e costante."

— Andrea L., Italy
★★★★☆

"Consistent sizing across long batches. Very reliable PVD grade."

— Yoshi T., Japan

Frequently Asked Questions

Q: Is TT8020 suitable for general steel turning?
A: While it will work, it is specifically optimized for Stainless (ISO M) and HRSA (ISO S). For high-speed carbon steel turning, a CVD grade like TT8125 is more cost-effective.
Q: Should I use coolant with PVD grades?
A: High-pressure constant coolant is highly recommended for stainless steel to evacuate chips and control the heat at the cutting edge.
Q: Can the MT chipbreaker handle roughing?
A: The MT is a finishing/medium chipbreaker. For heavy roughing, we recommend the RT or HM geometries.

Machining Tip: When working with Inconel or Titanium, ensure your feed rate is consistent. Stopping the tool in the cut can cause immediate work hardening and catastrophic tool failure.

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.