Tungaloy TNMG160404 / TNMG160408 T5115 CVD Coated Carbide Turning Inserts for Cast Iron

Tungaloy TNMG160404 / TNMG160408 T5115 CVD Coated Carbide Turning Inserts for Cast Iron

$66.47 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

DESIGNATION: TNMG160404 T5115

DESIGNATION: TNMG160404 T5115
TNMG160404 T5115
TNMG160408 T5115
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Description

Tungaloy TNMG160404 / TNMG160408 T5115 Turning Inserts

High-Stability Cast Iron Machining | Premium T5115 CVD Grade | Japan Original

What is the best carbide grade for machining gray and ductile cast iron?

The Tungaloy TNMG160404/08 T5115 series represents the pinnacle of cast iron turning technology. Engineered with the T5115 CVD coated carbide grade, these inserts are specifically designed to withstand the abrasive nature of gray (FC) and ductile (FCD) cast iron. By combining a thick, wear-resistant coating with a toughened substrate, the T5115 grade offers unparalleled tool life and edge reliability even during high-speed continuous or light interrupted cuts. Whether you need the precision of a 0.4mm radius (04) or the strength of a 0.8mm radius (08), these inserts deliver consistent performance in professional CNC environments.

T5115 CVD Coating

Features a thick Al2O3 layer that provides exceptional heat resistance and wear protection against the abrasive graphite flakes in cast iron materials.

Premium Substrate

The high-toughness carbide substrate prevents sudden edge breakage, making it ideal for the varying densities found in large cast iron workpieces.

Consistent Surface Finish

Tungaloy's specialized post-coating surface treatment reduces friction, leading to improved chip evacuation and a more predictable surface Ra value.

Decoding TNMG 160404/08 Nomenclature

T
Triangular
N
0° Relief
M
Tolerance
G
Double Sided
16
16mm Length
04
4.76mm Thk
04/08
0.4/0.8 Rad

3. Technical Specifications: Metric (ISO) vs. Imperial (ANSI)

Feature Metric (ISO) Imperial (ANSI)
Standard Models TNMG160404 / 08 TNMG 331 / 332
Inscribed Circle (IC) 9.525 mm 3/8"
Thickness (S) 4.76 mm 3/16"
Corner Radius (RE) 0.4 mm / 0.8 mm 1/64" / 1/32"

Recommended Cutting Parameters (Cast Iron)

  • Cutting Speed (Vc): 120 - 450 m/min
  • Feed Rate (f): 0.15 - 0.50 mm/rev
  • Depth of Cut (ap): 1.0 - 4.5 mm

*Note: T5115 is optimized for high-speed machining. Increase cutting speed for better chip control in gray iron.*

4. Primary Applications

  • Turning gray iron casting (FC series).
  • Boring ductile/nodular iron (FCD series).
  • Automotive brake rotors and engine block finishing.
  • High-volume industrial pump and valve housings.

5. Tool Compatibility

Fits all standard ISO/ANSI triangular tool holders. Works perfectly with MTJNR/L, WTJNR/L, and DTGNR/L series tool holders and boring bars.

7. Why Choose CNCHome-Beyond?

100% Genuine
Original Tungaloy Japan
Technical Experts
Technical Director Support
B2B Direct Supply
Professional Sourcing
Global Logistics
Fast International Shipping

Machinist Feedback from the Field

⭐⭐⭐⭐⭐ "Best for Ductile Iron" - Robert T., USA
"T5115 is my go-to for nodular iron pumps. The tool life is double compared to standard PVD grades. Consistent and reliable."

⭐⭐⭐⭐⭐ "Original Quality" - Dieter S., Germany
"Exactly as advertised. Factory sealed boxes. Tungaloy's Japan factory products always deliver the best surface finish."

⭐⭐⭐⭐ "Great Performance" - Chen L., Singapore
"Used the TNMG160408 on brake rotor machining. The 0.8mm radius is very robust. Good chip control at 300 m/min."

⭐⭐⭐⭐⭐ "Reliable B2B Partner" - Kenji O., Japan
"Fast delivery. These are original Japan parts. Highly recommended for any serious CNC workshop."

⭐⭐⭐⭐⭐ "Excellent Price/Quality" - Alistair M., UK
"Sourced these for a long batch run on grey iron casting. The T5115 grade didn't crack once. Great edge strength."

8. FAQ - Cast Iron Machining Support

Q: Why should I use T5115 for cast iron instead of steel grades?

A: Cast iron is highly abrasive. T5115 has a specialized thick Al2O3 CVD coating specifically designed to resist the abrasive wear and heat generated by graphite flakes.

Q: Should I use coolant when turning cast iron?

A: For gray iron, dry machining is often preferred to prevent thermal cracking. However, for ductile iron or heavy roughing, a consistent flow of coolant is recommended.

Q: What is the difference between 160404 and 160408?

A: 160404 (0.4mm radius) is better for finishing and thin-walled parts. 160408 (0.8mm radius) is much stronger for roughing and larger depths of cut.

Tech Tip: T5115 vs. T515 Grade

While **T5115** is optimized for high-speed continuous cutting of gray and ductile iron, choose **T515** if your operation involves heavy interruptions or unstable setups. **Tungaloy Japan** - Engineering excellence for cast iron technology.

© Technical Data by cnchome-beyond.com - Global CNC Tool Authority

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.