Tungaloy 11IR 1.5ISO-B AH725 Internal Threading Carbide Insert (10pcs)

Name: Tungaloy 11IR 1.5ISO-B AH725 Internal Threading Carbide Insert (10pcs)
Brand: BEYOND
SKU: 11IR15ISO-BAH725
Price: 93.47 USD
Availability: InStock

$93.47 USD

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Description

Description

TUNGALOY 11IR 1.5ISO-B AH725

Internal ISO Metric Specialist | 1.5mm Pitch | AH725 Nano-PVD Grade

Product Overview

The Tungaloy 11IR 1.5ISO-B AH725 is a high-performance internal threading insert engineered for 1.5mm pitch ISO metric threads (the standard for M10 and M11 coarse threads). This indexable carbide insert utilizes Tungaloy's signature AH725 PVD coated carbide, a grade specifically optimized for high-reliability CNC machining in stainless steel, carbon steel, and difficult-to-cut superalloys. The "-B" chipbreaker geometry is essential for internal threading, where space is tight; it tightly curls chips to ensure they are easily flushed out of the bore by coolant. For precision machining where profile accuracy and surface finish are paramount, this Japanese-manufactured tool is the industry benchmark.

Technical Designation Breakdown

11
Size (IC)

I
Internal

R
Right Hand

1.5
Pitch (mm)

ISO
Metric

B
Chipbreaker

Technical Specifications: Metric vs. Imperial

Technical Feature	Metric (ISO)	Imperial (TPI)
Thread Pitch	1.5 mm	~16.9 Threads Per Inch
Inscribed Circle (IC)	6.35 mm	1/4 inch
Application	Internal M10 x 1.5	Fine/Coarse specialized

Pitch Selection Guidance: The 1.5ISO is a Full Profile insert. This means it forms the complete 60° thread, including the root and the crest. By using a full profile tool, you ensure the thread depth and crest radius are perfectly within ISO specifications, eliminating the need to deburr or manually adjust the bore diameter after threading.

Material: AH725 High-Toughness Carbide

The AH725 grade is Tungaloy’s premier PVD coated carbide solution. It features a micro-grain substrate that resists chipping, paired with a nano-multilayered coating for heat resistance. This long-tail keywords industry favorite is designed for stainless steel turning and threading, ensuring high tool life even in unstable or interrupted cutting conditions.

-B Geometry: Internal Chip Control

In internal threading, chips often get trapped between the tool and the workpiece. The -B chipbreaker (槽型) features a high-rake angle and an optimized chip pocket that forces chips to break small and curl away from the thread flank, protecting your precision machining results.

Recommended Cutting Parameters

Optimized for P (Steel) and M (Stainless Steel):

Cutting Speed (Vc): 80 - 150 m/min (260 - 490 SFM)
Total Radial Depth: 0.92 mm
Number of Passes: 8 - 14 passes

*Pro Tip: For 1.5mm pitch, use a modified flank infeed (29°) to reduce tool pressure and prevent chatter in deep bores.*

Global Verified Reviews

⭐⭐⭐⭐⭐ "Standard for our M10 Parts" - Thomas L., Germany
"Consistent 1.5mm profile and excellent tool life. The -B chipbreaker is vital for stainless work."

⭐⭐⭐⭐⭐ "Great toughness in Alloy Steel" - Hiroshi T., Japan
"AH725 handles interrupted cuts very well. Very sharp edges and mirror finish on the internal threads."

⭐⭐⭐⭐ "Reliable Performance" - Mark S., USA
"Original Tungaloy. Fits my SNR holders perfectly. Fast shipping and great wholesale price."

⭐⭐⭐⭐⭐ "No more chip nesting" - Luca G., Italy
"The chip control is impressive. We no longer have to stop the machine to clear the bore during production."

⭐⭐⭐⭐⭐ "High Precision" - Ben H., UK
"Cleanest threads we've seen on our CNC lathes. Definitely worth the investment for high-precision jobs."

Technical Q&A

Q: Can I use this for external threads?

A: No. This is an **11IR** (Internal Right). For external threading, you need the **11ER** series.

Q: What tool holder do I need?

A: It fits any boring bar with an 11-size pocket (1/4" IC), such as the **SNR0010K11** or **SNR0013M11**.

Q: Is it suitable for Titanium?

A: Yes. The **AH725** grade is a high-performance PVD carbide that excels in heat-resistant superalloys like Titanium and Inconel.

Expert Machining Tip: Grade Selection

For internal threading, always prioritize PVD grades like **AH725** over CVD grades. PVD coatings allow for a sharper cutting edge, which reduces cutting forces and prevents the "tearing" of threads in gummy materials like stainless steel.

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.