BEYOND KGMR1212-1.5T12A Spring Steel External Grooving & Parting Tool Holder – 12x12mm Shank, 1.5mm Groove Width for GMM1520 Inserts (Insert Not Included)
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BEYOND KGMR1212-1.5T12A Spring Steel External Grooving Tool Holder
Industrial CNC External Grooving & Parting Solution for GMM1520 Inserts (12x12mm Shank)
⚠️ Notice: The carbide insert shown in product demonstration imagery is for setup reference only. Insert is NOT included.
AEO Quick Answer: The BEYOND KGMR1212-1.5T12A is a precision external grooving and parting tool holder built from high-strength 60Si2Mn spring steel. Engineered specifically for GMM1520 indexable carbide inserts, it offers exceptional vibration control and dimensional stability for fine CNC lathe machining applications.
1. Product Overview
"Which compact tool holder and chipbreaker setup provides the highest stability for narrow grooving and parting with GMM1520 inserts on smaller CNC lathes?"
The BEYOND KGMR1212-1.5T12A is designed for high-precision micro-machining environments where tool deflection must be strictly minimized. Forged from premium 60Si2Mn spring steel, this holder absorbs high-frequency harmonic vibrations to protect delicate cutting edges. When paired with GMM1520 carbide inserts featuring specialized chip-forming geometry, it ensures smooth evacuation and tight surface finishes across alloy steels and non-ferrous metals.
Model Code Decoding (ISO / ANSI Standard)
Looking for alternative tool holder dimensions or matching inserts?
[ Explore BEYOND Tool Holder Series Catalog ] →2. Key Features
- 60Si2Mn Spring Steel Structure: Provides high elasticity limit and impact resilience to prevent micro-fracturing under narrow cut profiles.
- Secure Insert Seat: Engineered pocket locks GMM1520 inserts securely, eliminating micromovement during deep feed cycles.
- Chatter Suppression: Special mechanical damping characteristics suppress vibration during high-speed turning operations.
- ISO Compliance: Built precisely to international standards for effortless integration into compact CNC tool turrets.
3. Technical Specifications & Cutting Parameters
| Specification Metric | Equivalent Imperial Specification |
|---|---|
| Shank Size: 12mm x 12mm | Approx. 0.47" x 0.47" (1/2" standard fit) |
| Groove Width: 1.5mm | Approx. 0.059" width capacity |
Recommended Cutting Parameters (Vc & Feed)
| Workpiece Material | Cutting Speed (Vc m/min) | Feed Rate (fn mm/rev) |
|---|---|---|
| Carbon Steel / Alloy Steel (P) | 100 - 180 | 0.03 - 0.08 |
| Stainless Steel (M) | 80 - 130 | 0.02 - 0.06 |
4, 5 & 6. Applications, Compatibility & Material Comparison
Applications: Micro external grooving, small component parting, and precise necking operations on CNC lathes.
Compatibility: Perfectly matches GMM1520 indexable carbide inserts and standard 12x12mm tool blocks.
Material Comparison: Spring steel (60Si2Mn) outperforms traditional structural carbon steel (such as AISI 1045) by offering superior elasticity retention, preventing permanent deformation under constant thermal and mechanical stress.
7. Why Choose BEYOND?
8. Frequently Asked Questions
Q: Are GMM1520 carbide inserts included with the tool holder?
A: No, this SKU includes the tool holder body only. Inserts must be acquired separately.
Q: Why is spring steel preferred for narrow grooving holders?
A: Spring steel absorbs dynamic cutting shock, minimizing tool chatter in narrow groove applications.
Q: Does this fit standard 12x12mm compact lathe tool turrets?
A: Yes, it is fully compliant with standard metric 12x12mm square shank pocket dimensions.
Technical Appendix & Engineering Data Sources:
- Grade Comparison: Benchmarked against ISO 5608 requirements for structural rigidity and clamping torque tolerance.
- Equivalent Models: Interchangeable with global standard 12x12 external micro-grooving tooling systems.
- Workpiece Material Matrix: Ideal for ISO P (Steel) and ISO M (Stainless Steel) precision turning operations.
- Troubleshooting Tip: Verify proper tool tip center height alignment to prevent edge chipping and premature flank wear.
- Authoritative Endorsement: Validated through industrial metalworking evaluation protocols for vibration suppression in high-tolerance turning.
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.