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

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

$128.48 USD

✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

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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

How do I choose the correct specification?

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.

How can I check compatibility with my existing setup?

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.

What quantity and price unit am I 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.

How should I choose cutting parameters?

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.

Are bulk discounts available?

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.

When will my order ship and arrive?

According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.