Tungaloy XPMT110412R-DJ AH725 Indexable Drilling Insert | TAC Drill Series
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Tungaloy XPMT110412R-DJ AH725 Carbide Drilling Insert – Optimized for Steel & Stainless Performance
Enhanced PVD coated carbide insert for high-precision drilling. Combining the robust AH725 grade with the specialized DJ chipbreaker for superior evacuation in deep-hole applications.
Product Overview
"Which indexable insert provides the most stable chip control and tool life when drilling alloy steels and stainless components?"
The Tungaloy XPMT110412R-DJ AH725 is specifically engineered for the outer pocket of indexable drills. The DJ (Drilling Joint) chipbreaker features a unique rake angle and groove design that forces chips to break into short, manageable curls, preventing "chip clogging" even in ductile materials. Coupled with the AH725 PVD Grade—a high-AlTiN coating on a tough carbide substrate—this insert excels in resisting thermal shock and edge chipping, making it a "first-choice" grade for steel (P) and stainless (M) drilling operations.
Model Code Decoder – XPMT110412R-DJ
6-degree Parallelogram
11° (Positive)
Standard Class
Screw Lock
11.0 mm
4.76 mm
1.2 mm
Drilling Joint
Key Features
Technical Specifications
Dimensions: Metric vs. Imperial
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Model Code | XPMT110412R-DJ | XPMT 3.5(1.5)3-DJ |
| Edge Length (L) | 11.0 mm | 0.433 in |
| Thickness (S) | 4.76 mm | 0.187 in |
| Corner Radius (r) | 1.2 mm | 0.047 in |
| Hole Diameter (d1) | 4.4 mm | 0.173 in |
Recommended Cutting Parameters
| Workpiece Material | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Low Carbon Steel (P) | 120 - 220 | 0.08 - 0.18 |
| Alloy Steel (P) | 100 - 180 | 0.07 - 0.15 |
| Stainless Steel (M) | 80 - 150 | 0.06 - 0.12 |
| Cast Iron (K) | 120 - 200 | 0.10 - 0.20 |
🔧 Compatible Tungaloy Drill Bodies (TDX Series)
Applications
Why Choose Us
Customer Feedback
"Outstanding chip control on 304 Stainless. The DJ breaker really makes a difference in preventing nesting."
"Stable tool life. AH725 grade is our go-to for varied steel drilling operations."
"Perfect fit for our TDX drills. Good performance at 150 m/min."
Frequently Asked Questions
💡 Grade Tip: AH725 vs. AH120
Choose AH725 for a balance of toughness and speed in Steel and Stainless. If you are experiencing excessive heat wear in heavy roughing, consider moving to the AH120 grade for higher thermal stability.
Technical FAQ & Buying Guide
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.
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.
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.
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.
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.
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.