Tungaloy 11IR 1.0ISO-B AH725 Internal Threading Carbide Insert (10pcs) - BEYOND

Tungaloy 11IR 1.0ISO-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

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Description

TUNGALOY 11IR 1.0ISO-B AH725

Metric Internal Specialist | 1.0mm Pitch | AH725 Nano-PVD Coating

Product Overview

The Tungaloy 11IR 1.0ISO-B AH725 is a high-precision internal threading insert designed for 1.0mm pitch ISO metric threads, a standard for M6 and M7 industrial fasteners. This indexable carbide insert features Tungaloy's premium AH725 PVD coated carbide grade, renowned for its exceptional balance of wear resistance and toughness during CNC machining. The specialized "-B" chipbreaker geometry is engineered for internal applications, ensuring effective chip curling to protect the finished thread surface. For precision machining in stainless steel, carbon steel, and heat-resistant alloys, this Japan-made tool offers world-class reliability and surface finish quality.

Technical Designation Breakdown

11
Size (IC)
I
Internal
R
Right Hand
1.0
Pitch (mm)
ISO
Standard
B
Chipbreaker

Technical Specifications: Metric vs. Imperial

Technical Feature Metric (ISO) Imperial (TPI)
Thread Pitch 1.0 mm 25.4 Threads Per Inch
Inscribed Circle (IC) 6.35 mm 1/4 inch
Application Internal M6 x 1.0 Fine Thread equivalent

Pitch Selection Guidance: The 1.0ISO is a Full Profile insert. This ensures the insert forms the complete thread—crest, root, and flank—in one operation. This is critical for maintaining the correct minor diameter in internal threading, ensuring the fastener fits perfectly without manual adjustments to the pre-drilled hole size.

Material: AH725 PVD High-Toughness Carbide

The AH725 grade is Tungaloy's specialized PVD coating over a micro-grain carbide substrate. This long-tail keywords industry favorite is optimized for stainless steel turning and threading. Its unique coating architecture provides extreme resistance to thermal cracking and notch wear, significantly extending tool life even in high-speed applications.

-B Geometry: Internal Chip Control Specialist

In internal threading, chip evacuation is the primary challenge. The -B chipbreaker (槽型) is engineered with a specific rake angle and chip pocket that forces chips to curl tightly. This prevents chips from being crushed against the finished thread, a vital requirement for precision machining.

Recommended Cutting Parameters

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

  • Cutting Speed (Vc): 80 - 160 m/min (260 - 520 SFM)
  • Total Radial Depth (ap): 0.61 mm
  • Number of Passes: 6 - 10 passes (Recommended for 1.0 pitch)

*Pro Tip: For 1.0mm pitch internal threads, always use a rigid boring bar with the shortest possible overhang to maintain profile accuracy.*

Global Verified Reviews

⭐⭐⭐⭐⭐ "Perfect for M6 Production" - Stefan K., Germany
"Very consistent 1.0 pitch. The -B chipbreaker is a lifesaver for internal work in 304 stainless."

⭐⭐⭐⭐⭐ "Original Tungaloy Quality" - Robert K., USA
"AH725 is incredibly tough. Tool life is significantly better than our previous supplier. Highly recommended."

⭐⭐⭐⭐ "Very Sharp and Stable" - Takumi H., Japan
"Tungaloy original. Very clean threads. The full profile trims the crest perfectly."

⭐⭐⭐⭐⭐ "Mirror Finish" - Luca B., Italy
"Excellent surface quality. The chips break perfectly so they don't scratch the bore."

⭐⭐⭐⭐⭐ "Top Notch Durability" - Liam S., UK
"Solid performance on our CNC lathe. Fits the SNR0010 holder perfectly. Very fast shipping."

Technical Q&A

Q: Can I use this for external threads?

A: No. This is an **11IR** (Internal Right-hand). For external work, you require the **11ER** series.

Q: Which tool holder is compatible?

A: It fits standard threading boring bars with an 11-size pocket (1/4" IC), such as the **SNR0010K11** or **SNR0012M11**.

Q: Is AH725 good for Titanium?

A: Yes! AH725 is a high-toughness PVD grade designed for steel, stainless, and difficult-to-cut superalloys like Titanium.

Expert Machining Tip: Grade Comparison

For internal threading, PVD grades like **AH725** are superior to CVD grades because they maintain a sharper cutting edge. This sharpness is essential to prevent thread "tearing" in gummy materials like 300-series stainless steel, leading to better tool life and profile accuracy.

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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.