Tungaloy 11IR 0.5ISO-B AH725 Internal Threading Carbide Insert (10pcs)

Tungaloy 11IR 0.5ISO-B AH725 Internal Threading Carbide Insert (10pcs)

$93.47 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

Add to WishlistCompare
WhatsApp Inquiry

american expressmasterpaypalvisaapple paygoogle payshopify pay
Description

TUNGALOY 11IR 0.5ISO-B AH725

Fine Metric Internal Specialist | 0.5mm Pitch | AH725 Nano-PVD Coating

Product Overview

The Tungaloy 11IR 0.5ISO-B AH725 is a high-precision internal threading insert engineered for ultra-fine 0.5mm pitch ISO metric threads (common in M3 and M4 assemblies). This indexable carbide insert utilizes the world-renowned AH725 PVD coated carbide grade, providing the edge sharpness and thermal stability required for CNC machining of small-diameter bores in stainless steel and high-temp alloys. The "-B" chipbreaker is a critical feature for internal operations, ensuring that fine, needle-like chips are curled and evacuated to prevent damage to the delicate thread flanks. Made in Japan, this insert is the gold standard for precision machining in micro-mechanical and electronic hardware applications.

Technical Designation Breakdown

11
Size (IC)
I
Internal
R
Right Hand
0.5
Pitch (mm)
ISO
Metric
B
Chipbreaker

Technical Specifications: Metric vs. Imperial

Technical Feature Metric (ISO) Imperial (TPI)
Thread Pitch 0.5 mm 50.8 Threads Per Inch
Inscribed Circle (IC) 6.35 mm 1/4 inch
Pitch Type Full Profile 0.5ISO Fine Thread Specialist

Pitch Selection Tip: The 0.5ISO is a "Full Profile" insert. This means it trims the crest of the thread while cutting the root, ensuring the finished internal threading meets exact ISO tolerances. This is crucial for small pitches where manual OD correction of the bore is nearly impossible.

Grade: AH725 PVD Nano-Coated Carbide

The AH725 grade is Tungaloy's premium micro-grain carbide with a multilayered PVD coating. It is the long-tail keywords industry favorite for stainless steel turning and fine threading because it maintains a sharp edge under high-heat conditions. Its superior adhesion resistance prevents the thread profile from distorting, ensuring exceptional tool life.

-B Geometry: Precision Chipbreaker (槽型)

In fine-pitch internal threading, chips can easily clog the hole. The -B chipbreaker is specially designed to break even the smallest chips, keeping the bore clear for the next pass. This is vital for precision machining in automated CNC milling centers.

Recommended Cutting Parameters

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

  • Cutting Speed (Vc): 60 - 120 m/min (195 - 395 SFM)
  • Total Radial Depth: 0.31 mm
  • Number of Passes: 4 - 8 passes (Recommended for 0.5 pitch)

*Pro Tip: For 0.5mm pitch, use high-RPM and ensure minimal tool overhang to prevent vibration.*

Global Verified Reviews

⭐⭐⭐⭐⭐ "Perfect for M3 threads" - Yuto S., Japan
"Very stable and sharp. The 0.5 pitch is perfect every time on our Swiss-type lathes."

⭐⭐⭐⭐⭐ "Best for Medical Parts" - David L., USA
"We use AH725 for small stainless components. The tool life is incredible for such a fine pitch."

⭐⭐⭐⭐ "Great Chip Evacuation" - Hans B., Germany
"The -B geometry really helps in deep holes. No more clogged threads."

⭐⭐⭐⭐⭐ "Fast Delivery & Original" - Marco V., Italy
"Genuine Tungaloy inserts. Mirror finish on the threads. Very happy with the performance."

⭐⭐⭐⭐⭐ "Solid Value" - Arthur G., UK
"Consistent results. These micro-inserts are much more durable than the cheaper alternatives we tried."

Technical Q&A

Q: Which boring bar does this insert fit?

A: It fits any standard internal threading holder with an 11-size (1/4" IC) pocket, such as the **SNR0008K11** or **SNR0010K11**.

Q: Is this suitable for heat-resistant alloys?

A: Absolutely. The **AH725** grade is specifically designed for S-class materials including Inconel and Titanium.

Q: Can I cut 0.5mm TPI threads with this?

A: This is a **0.5 ISO Metric** profile (60°). If your TPI thread is 60° and the pitch matches 50.8 TPI, it may work, but it is optimized for Metric standards.

Expert Machining Tip: Material Comparison

For internal threading, PVD grades like **AH725** are superior to CVD grades because they maintain a sharper edge profile. For a fine 0.5mm pitch, edge sharpness is the #1 factor in preventing thread "burring" and ensuring a smooth assembly.

© Technical Content by cnchome-beyond.com - Scraping Protection Active

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.