Taegutec SPMG140512DG TT9030 Carbide Insert for CNC U-Drill (10pcs)
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TaeguTec SPMG140512DG TT9030
The Heavyweight Champion: Maximum Toughness and 1.2mm Radius for Extreme Drilling Security
Product Overview
"When drilling the largest diameters in the most unstable conditions, the 14mm TT9030 with a 1.2mm radius is the ultimate safety net."
The TaeguTec SPMG140512DG TT9030 is a heavy-duty 14mm indexable drilling insert designed for high-capacity TOPDRILL bodies. This insert is engineered for the "tough stuff"—drilling through heavy scale, welded seams, or massive interrupted cuts in alloy steel. The TT9030 grade provides a specialized PVD-coated toughness that absorbs the mechanical shock of entry and exit in complex geometries. Combined with the 1.2mm corner radius, this insert offers the highest edge strength in the SPMG family, making it nearly impervious to the chipping that plagues smaller or more brittle inserts in Steel (ISO P) and Stainless (ISO M).
Core Advantages
The large 1.2mm radius provides exceptional corner strength, distributing heat and radial pressure across a wider area to prevent notch wear.
Optimized for high-feed drilling, the DG chipbreaker ensures chips are fragmented into manageable sizes, preventing flute packing in deep holes.
The TT9030 substrate is designed to flex rather than fracture, surviving vibration and impacts that would destroy high-speed grades.
Technical Specifications
ISO Designation Decoding: SPMG 140512 DG
Square
11° Relief
Tol. Class M
W/ Hole
14.30mm L
5.20mm T
1.2mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | SPMG 140512 DG | 14.30 mm | 5.20 mm |
| Imperial | SPMG 544 DG | 0.563" | 0.205" |
Recommended Cutting Parameters (TT9030)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Heavy Duty Steel (P) | 80 - 170 | 0.15 - 0.25 |
| Tough Stainless (M) | 60 - 130 | 0.12 - 0.20 |
Matched Large-Diameter Holders
This insert is precision-matched for TaeguTec TOPDRILL bodies in the Size 14 pocket range.
Industrial Applications
- Heavy structural drilling in massive weldments and ship building.
- Machining large-diameter holes in forged mining equipment.
- Highly effective for drilling into uneven surfaces of cast components.
- Excellent for heavy interrupted cuts in oil and gas manifold manufacturing.
Performance Profile
Selected here. Engineered for toughness. Prevents breakages in "unfriendly" setups.
Best for high-speed production on rigid machines with clean, continuous cuts.
The Ultimate Safety Shield
The SPMG140512DG TT9030 is built for the largest indexable drills where the cost of failure is extremely high. By utilizing the 1.2mm corner radius, this insert offers the maximum possible edge integrity in the SPMG lineup. If your machine is older, your parts are forged, or your setups are inherently unstable, the TT9030 grade is the industry-standard choice to keep your spindle turning without fear of catastrophic tool failure.
"Perfect for drilling rough forged structural steel. The 1.2 radius is nearly indestructible."
— Heavy Fab Supervisor (USA)Diese Platte ist extrem zäh. Ideal für unterbrochene Schnitte bei großen Durchmessern.
— Werkstattleiter (Germany)The most reliable 14mm insert we've ever used for our structural drilling projects.
— CNC Foreman (Australia)Frequently Asked Questions
1. Why choose the 1.2mm radius over the 0.8mm?
For 14mm pockets, the 1.2mm radius offers significantly more edge strength for high feed rates and heavy-duty entries, which is usually preferred in large-scale drilling.
2. Does this fit DrillRush bodies as well?
Yes, it fits all TaeguTec drilling systems that specify the SPMG 14 pocket size.
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.