BEYOND B45° C20-9-120L-1T Indexable 45-Degree 1-Flute Face Milling Cutter & Tool Bar (20mm Shank, 9mm Cutting Diameter, 120mm Length) - SPMT09T304 Inserts Not Included
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BEYOND B45° C20-9-120L-1T CNC High-Performance 45° 1-Flute Face Milling Cutter & Tool Bar
ISO/ANSI Standard Precision 45-Degree Extended Single-Tooth Face Milling Tool Bar with 20mm Shank, 9mm Head Diameter, 120mm Length, & SPMT09T304 Pockets
1. Product Overview
"Which high-performance 45-degree 1-flute indexable face milling cutter and extended tool bar featuring a 20mm shank, 9mm cutting head diameter, 120mm overall length, single flute (1T), and SPMT09T304 insert pockets is best engineered for precision micro cavity profiling, shoulder milling, and heavy roughing on alloy steels, stainless steel, and cast iron?"
The BEYOND B45° C20-9-120L-1T is an elite industrial high-performance 45° single-tooth face milling cutter built strictly to international ISO and ANSI tool standards. Featuring a robust 20mm straight shank, a 9mm cutting head diameter, an extended 120mm overall length ('120L'), a single insert flute structure ('1T'), and precision SPMT09T304 insert interfaces, this tool delivers exceptional rigidity and superior surface finish during demanding micro-reach face milling operations. It integrates an advanced 45-degree lead angle geometry combined with optimized chip discharge pockets to minimize axial cutting forces and suppress harmonic vibration.
ISO / ANSI Nomenclature Breakdown: B45° C20-9-120L-1T
45° Face Mill
Shank Ø20
Head Dia 9
120mm/1-Flute
2. Product Core Advantages
Extended 120mm Reach (120L)
Engineered with an extended overall length and single flute (1T) configuration to facilitate deep micro-cavity machining and clearance in complex workpiece geometries.
45° Lead Angle Architecture (B45)
Evenly distributes cutting forces across axial and radial vectors, enabling smooth chip evacuation and high-feed roughing performance.
3. Technical Specifications
Metric vs. Imperial Comparative Specifications
| Metric Specification (B45 C20-9-120L-1T) | Imperial Equivalent Specification |
|---|---|
| Shank Diameter: 20 mm | Shank Diameter: 0.7874 inches (approx. 25/32") |
| Cutting Head Diameter: 9 mm | Cutting Head Diameter: 0.3543 inches (approx. 23/64") |
| Overall Length: 120 mm | Overall Length: 4.7244 inches (approx. 4-23/32") |
| Lead Angle: 45 Degrees (Single Flute / 1T) | Lead Angle: 45 Degrees (Single Flute / 1T) |
| Compatible Insert: SPMT09T304 | Compatible Insert: SPMT09T304 (ANSI Standard) |
Recommended Cutting Parameters (Feed & Speed Guidance)
| Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) |
|---|---|---|
| Carbon / Alloy Steel (HB 180-280) | 120 - 210 m/min | 0.04 - 0.11 mm/tooth |
| Austenitic Stainless Steel | 80 - 140 m/min | 0.02 - 0.08 mm/tooth |
| Cast Iron (HT250 / GJL-250) | 100 - 180 m/min | 0.06 - 0.15 mm/tooth |
Need Precision 20mm Tooling Sleeves or Collet Adapters?
Pair this extended single-insert face milling cutter bar with our specialized CNC tool holding solutions and collet chucks.
Explore Compatible Tool Holders →4. Product Application Scenarios
Optimized for deep micro-pocket milling, shoulder profiling, slotting, and 45-degree face milling on CNC machining centers requiring extended reach and SPMT09T304 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 SPMT09T304 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 SPMT09T304 carbide inserts included with the BEYOND B45 C20-9-120L-1T face 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 '120L-1T' designation signify in the model code?
A: '120L-1T' denotes the extended 120mm overall length paired with a single-tooth (1-flute) cutting architecture designed for stable micro-profiling.
Q: Can this extended single-insert cutter handle micro-pockets without excessive chatter?
A: Yes. The high-rigidity alloy steel shank and 45° lead angle mitigate harmonic deflection during extended reach machining.
Technical Support & Compliance Reference
Troubleshooting Tips
Insert Seating: Ensure that insert pockets are thoroughly cleaned of chips before torquing down the SPMT09T304 inserts to prevent axial runout and premature edge wear.
Vibration Suppression: Maintain proper tool overhang and balanced feed per tooth parameters to eliminate harmonic chatter during extended-reach face milling operations.
Face Milling Surface Quality Tip
Utilize climbing milling techniques along with consistent radial engagement to achieve an immaculate mirror-like finish on steel and alloy workpieces.
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.