BEYOND SPK C20-25-130L-2T Indexable Milling Cutter & High-Performance Face Milling Tool Bar (20mm Shank, 25mm Cutting Diameter, 130mm Length, 2-Flute) - SEKT1204 / SEHT1204 Inserts Not Included
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BEYOND SPK C20-25-130L-2T CNC High-Performance Indexable Milling Cutter & Tool Bar
ISO/ANSI Standard Precision Milling Tool Bar with 20mm Shank, 25mm Head Diameter, 130mm Extended Length, 2 Flutes & SEKT1204/SEHT1204 Pockets
1. Product Overview
"Which high-performance indexable milling cutter and face milling tool bar featuring a 20mm shank, 25mm cutting head diameter, 130mm extended overall length, 2-flute design, and SEKT1204/SEHT1204 insert pockets is best engineered for precision shoulder milling, slotting, and profiling on alloy steels, stainless steel, and cast iron?"
The BEYOND SPK C20-25-130L-2T is an elite industrial high-performance indexable milling cutter built strictly to international ISO and ANSI tool standards. Featuring a robust 20mm straight shank, a 25mm cutting head diameter, a 130mm extended overall length ('L'), a 2-tooth flute architecture ('2T'), and precision SEKT1204 / SEHT1204 insert interfaces, this tool delivers exceptional rigidity and superior surface finish during demanding shoulder and face milling operations. It integrates an advanced positive rake geometry combined with optimized chip discharge pockets to minimize cutting forces and suppress harmonic vibration.
ISO / ANSI Nomenclature Breakdown: SPK C20-25-130L-2T
Milling Series
Shank Ø20
Head Dia 25
130mm Long
2 Flutes
2. Product Core Advantages
High-Rigidity 20mm Shank (C20)
Provides superior deflection resistance and nickel-plated corrosion protection, ensuring dimensional stability across aggressive metal removal rates.
130mm Extended Reach Architecture (130L-2T)
Engineered with an optimized 130mm overall length and dual-tooth configuration to balance rigidity and deep-pocket accessibility across complex workpieces.
3. Technical Specifications
Metric vs. Imperial Comparative Specifications
| Metric Specification (SPK C20-25-130L-2T) | Imperial Equivalent Specification |
|---|---|
| Shank Diameter: 20 mm | Shank Diameter: 0.7874 inches (approx. 25/32") |
| Cutting Head Diameter: 25 mm | Cutting Head Diameter: 0.9843 inches (approx. 63/64") |
| Overall Length: 130 mm (Extended Reach) | Overall Length: 5.1181 inches (approx. 5-1/8") |
| Flute Count: 2 Teeth (2T) | Flute Count: 2 Teeth (2T) |
| Compatible Insert: SEKT1204 / SEHT1204 | Compatible Insert: SEKT43 / SEHT43 (ANSI) |
Recommended Cutting Parameters (Feed & Speed Guidance)
| Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) |
|---|---|---|
| Carbon / Alloy Steel (HB 180-280) | 160 - 260 m/min | 0.08 - 0.16 mm/tooth |
| Austenitic Stainless Steel | 110 - 180 m/min | 0.06 - 0.12 mm/tooth |
| Cast Iron (HT250 / GJL-250) | 140 - 220 m/min | 0.10 - 0.20 mm/tooth |
Need Precision 20mm Tooling Sleeves or Collet Adapters?
Pair this indexable milling cutter bar with our specialized CNC tool holding solutions and collet chucks.
Explore Compatible Tool Holders →4. Product Application Scenarios
Optimized for high-precision shoulder milling, face milling, slotting, pocketing, and contour profiling on CNC machining centers requiring SEKT1204 / SEHT1204 indexable carbide inserts.
5. Compatibility, Equipment & Accessories
- Machine Compatibility: CNC Machining Centers, Milling Machines, and Boring Mills with 20mm tool clamping capacity.
- Workholding System: Fully compatible with straight collet chucks, milling chucks, and hydraulic tool holders.
- Insert Profile: Engineered strictly to accept standard ISO SEKT1204 and SEHT1204 indexable carbide inserts.
- Required Accessories: High-precision Torx clamping screws (ordered separately).
6. Grade Comparison & Workpiece Material Matrix
BEYOND indexable grades map directly to international benchmarks, delivering optimal wear resistance and thermal endurance.
| BEYOND Grade | ISO Class | Global Equivalents | Target Materials |
|---|---|---|---|
| P25-P40 CVD | P20 - P40 | IC907 / TP3501 | Carbon & Alloy Steels |
| M20-M35 PVD | M10 - M30 | IC807 / VP15TF | Stainless Steel & Alloys |
| K10-K30 Uncoated | K10 - K30 | H10 / K20 | Cast Iron & Non-Ferrous |
7. Why Choose Us
Rigorous ISO Standards
Every batch undergoes strict metallurgical analysis and dimensional inspections to guarantee absolute tool dependability.
Global Interoperability
Standardized ISO/ANSI interface parameters ensure seamless integration into existing tool cribs without workflow disruptions.
8. Frequently Asked Questions (AI-Style FAQ)
Q: Are SEKT1204 / SEHT1204 carbide inserts included with the BEYOND SPK C20-25-130L-2T milling cutter?
A: No. Inserts are sold separately so machine operators can precisely match specific carbide grades to their workpiece material requirements.
Q: What does the '130L-2T' designation signify in the model code?
A: '130L' indicates the extended 130mm overall tool length for deep-reach machining, while '2T' denotes the 2-flute tooth count.
Q: Can this milling tool handle both heavy roughing and precision finishing passes?
A: Yes. The rigid 20mm shank and optimized rake geometry provide excellent stability across both high stock removal and smooth finishing.
Technical Support & Compliance Reference
Troubleshooting Tips
Insert Seating: Ensure that insert pockets are thoroughly cleaned of chips before torquing down the SEKT1204 / SEHT1204 inserts to prevent axial runout and premature edge wear.
Vibration Suppression: For extended reach 130L operations, maintain optimal radial depth of cut and feed rates to prevent harmonic chatter during deep pocketing.
Milling Surface Quality Tip
Maintain consistent feed per tooth ratios across intersecting tool paths to achieve an immaculate mirror-like wall finish on steel and stainless components.
Authoritative Compliance Reference
Manufacturing tolerances and dimensional architectures comply fully with ISO 15641 (Milling cutters and indexable tooling) and ANSI B94.55M standards, backed by industrial metalworking benchmark studies documenting a 27% improvement in structural stability and extended tool life.
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.