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.

Tungaloy VBMT160404-PS AH725 PVD Carbide Turning Insert for Steel Finishing

Name: Tungaloy VBMT160404-PS AH725 PVD Carbide Turning Insert for Steel Finishing
SKU: VBMT160404-PS AH725
Price: 79.89 USD
Availability: InStock

$79.89 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

Description

Description

Tungaloy VBMT160404-PS AH725 Insert

Professional 35° Rhombic Profiling | AH725 PVD Grade | 0.4mm Radius

What is the recommended insert for high-precision profiling in alloy steel?

The Tungaloy VBMT160404-PS AH725 is a high-performance 35-degree rhombic turning insert engineered for intricate profiling and finishing. The 16mm edge length provides a larger engagement area suitable for medium-sized components while maintaining the extreme precision required for finish passes. The AH725 PVD grade is a "universal" finishing solution, offering a perfect balance between wear resistance and toughness. Combined with the -PS (Positive Sharp) chipbreaker, this insert minimizes cutting forces, making it ideal for lathes where vibration suppression and surface Ra quality are the top priorities.

Multi-Material AH725 Grade

A specialized nano-PVD coating that prevents built-up edge (BUE) on stainless steel and resists thermal cracking in alloy steels.

-PS Precision Chipbreaker

Optimized for small depths of cut, ensuring that chips break effectively even in ductile materials, protecting the finished surface from scratches.

Superior Profiling Clearance

The 35° "V" shape allows the tool to reach into tight corners and complex contours where standard 80° (C) or 55° (D) inserts cannot.

Decoding VBMT 160404-PS Nomenclature

V
35° Rhom

B
5° Relief

M
Tolerance

T
Hole/Sinter

16
16mm

04
4.76mm

04
0.4 Rad

-PS
Sharp

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

Attribute	Metric (ISO)	Imperial (ANSI)
Standard Model	VBMT160404-PS	VBMT 331-PS
Inscribed Circle (IC)	9.525 mm	3/8"
Thickness (S)	4.76 mm	3/16"
Corner Radius (RE)	0.4 mm	1/64"

Optimized Cutting Parameters

Cutting Speed (Vc): 90 - 260 m/min
Feed Rate (f): 0.05 - 0.20 mm/rev
Depth of Cut (ap): 0.2 - 2.0 mm

4. Primary Applications

Precision turning and profiling of steel shafts and housings.
Finishing passes in 304/316 stainless steel where Ra is critical.
Aerospace and Medical grade machining for intricate parts.
Copy turning and undercutting operations.

5. Tool Compatibility

Designed for standard ISO VBMT 1604 pockets. Highly compatible with SVJCR/L external tool holders and SVUCR/L internal boring bars. Perfect for Citizen Swiss-type, Mazak, Haas, and DMG Mori CNC Lathes.

6. Tungaloy Material Selection Guide

Grade	Coating	Best Use Case	Performance
AH725	PVD	Stainless & Steel Finishing	High Sharpness & Adhesion Resistance
T9125	CVD	High-Speed Steel Machining	Thermal Stability at High Velocity
NS9530	Uncoated	Cermet Finishing	Ultimate High-Gloss Finish

7. Why Source from CNCHome-Beyond?

100% Genuine
Original Tungaloy Japan

Technical B2B Support
Expert Process Tuning

Fast Global Delivery
Express Logistics

Professional Machinist Feedback

⭐⭐⭐⭐⭐ "Mirror Surface on 316L" - Luc D., France
"The AH725 grade and -PS breaker combination is the only way we can hold tight tolerances on our stainless shafts. Outstanding tool life."

⭐⭐⭐⭐⭐ "Best Profiling Tool" - Kenji S., Japan
"Consistent results. The 16mm size gives us more stability than the smaller 11mm inserts for our larger CNC lathe parts."

⭐⭐⭐⭐⭐ "Authentic Quality" - Marcus W., USA
"Verified original Tungaloy stock from Beyond Li. Arrived quickly and the technical advice provided was spot on for our project."

8. FAQ - Engineering Support

Q: Is AH725 better than CVD grades for stainless steel?

A: Generally, yes. The PVD coating of AH725 is thinner and sharper, which helps prevent the built-up edge and chipping common in stainless steel finishing.

Q: What holder does this insert fit?

A: This is an ISO VBMT 1604 type. It fits standard SVJCR/L or SVUCR/L holders with a 16mm pocket size.

Tech Tip: Optimized Profiling Performance

The **35° V-geometry** is sensitive to vibration. For the best surface finish with the **0.4mm radius**, ensure your tool holder has the shortest possible overhang. Maintaining the recommended cutting speed (Vc) is crucial to activating the **AH725 coating** benefits. **Tungaloy Japan** - Excellence in Every Cut.

Need Help With Tungaloy Inserts?

Looking for a Tungaloy equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.

EQUIVALENT FINDER Cross-Reference to 15 Brands Find equivalent grades from Sandvik, Iscar, Kyocera, Walter, Mitsubishi and 10 more. FREE CATALOG Download PDF Catalogs 15+ insert catalogs with grade, ISO code, and tolerance data sheets. GRADE TOOL Find the Best Grade Insert grade selector for steel, stainless, cast iron, and superalloys.

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This Tungaloy insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.

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.