TaeguTec SPGG140512DA K10 | Precision Turning Insert for Aluminum
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TaeguTec SPGG140512DA K10
Master of Mirror Finishes: High-Precision Turning for Large Scale Non-Ferrous Components
Product Overview
"Which CNC turning insert is the best choice for achieving a high-gloss finish on large diameter aluminum workpieces without chatter?"
The TaeguTec SPGG140512DA K10 is a heavy-duty precision ground insert specifically optimized for ISO N (Non-ferrous) materials. The K10 grade features a sub-micron uncoated carbide substrate, providing the absolute sharpest cutting edge required to shear through gummy materials like Aluminum and Copper. Its DA chipbreaker is world-renowned for its mirror-polished rake face and high positive geometry, which significantly reduces cutting forces and eliminates Built-Up Edge (BUE). With a substantial 1.2mm nose radius, this insert provides exceptional surface integrity and edge strength for high-efficiency finishing.
Key Features
Uncoated fine-grain structure ensures maximum sharpness. It resists chemical adhesion from aluminum, extending tool life significantly in non-ferrous applications.
The DA geometry uses a polished rake face to minimize friction, ensuring chips flow away smoothly to prevent scratching the workpiece.
A 1.2mm radius combined with G-class precision grinding offers the perfect balance between surface gloss and edge durability.
Technical Specifications
ISO Designation Decoding: SPGG 140512 DA
Square
11° Relief
Tol. Class G
Hole/Chip
14.5mm L
5.56mm T
1.2mm RE
| Unit | Designation | I.C. (mm/inch) | Thickness (S) |
|---|---|---|---|
| Metric | SPGG 140512 DA | 14.5 mm | 5.56 mm |
| Imperial | SPGG 4.5(4)3 DA | 0.571" | 0.219" |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc m/min) | Feed (fn mm/rev) |
|---|---|---|
| Aluminum Alloy (Wrought) | 350 - 1200 | 0.10 - 0.35 |
| Copper / Brass / Bronze | 200 - 600 | 0.08 - 0.25 |
Matched Toolholders
This insert requires 11-degree relief angle holders: SCLC / SCAC / SCF (14 series).
Industrial Applications
- Finishing of large aerospace aluminum frames and engine parts.
- Mirror-finish turning of heavy-duty copper rollers and shafts.
- Precision machining of automotive aluminum alloy wheels.
- Automatic lathe operations for high-gloss brass decorative components.
TaeguTec Grade Benchmarking
Uncoated. Best for gloss and BUE prevention in Al.
Diamond-like carbon coated. Best for high-silicon abrasive Al.
Why Professional Machinists Trust TaeguTec
The SPGG140512DA K10 represents the pinnacle of large-scale finishing. Unlike generic alternatives, TaeguTec’s K10 substrate is engineered with a microscopic edge radius that cuts cleanly through material with minimal thermal transfer. When your production requires 100% surface perfection and high repeatability, the SPGG14 is the industry standard for non-ferrous excellence.
"Incredible Mirror Surface" - Achieved a glass-like finish on large aluminum alloy shafts. No chatter at all.
— Production Manager (USA)Sehr scharfe Schneidkante, ideal für unsere Aluminium-Produktion.
— CNC Spezialist (Germany)Ottima finitura su ottone. TaeguTec è sempre una garanzia.
— Meccanica di Precisione (Italy)Sharpest edge in the shop. Great for large plastics too.
— CNC Specialist (Japan)Frequently Asked Questions
1. Why is an uncoated grade (K10) better for Aluminum?
Uncoated carbide allows for a physically sharper edge. A coating adds thickness to the edge radius, which can cause heat and adhesion in soft aluminum.
2. Can I use this on Stainless Steel?
No. The sharp positive geometry and K10 grade will wear too fast in Stainless. Use TT9080 for ISO M materials.
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.