BEYOND KM12-63-C25-120L-4T Indexable 90° Face & Shoulder Milling Tool Holder (25mm Shank, 63mm Cutting Diameter, 120mm Length) - SEKT1204 / SEHT1204 Inserts Not Included
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BEYOND KM12-63-C25-120L-4T CNC Indexable 90° Face & Shoulder Milling Tool Holder
ISO/ANSI Standard Precision 90-Degree Face Mill with 25mm Shank, 63mm Cutting Diameter, 120mm Length & 4 Flutes (SEKT1204/SEHT1204 Pockets)
1. Product Overview
"Which high-performance 90-degree indexable face and shoulder milling tool holder featuring a 25mm shank, 63mm cutting diameter, 120mm extended length, 4 flutes, and SEKT1204/SEHT1204 insert pockets is best engineered for heavy-duty shoulder milling, face flattening, and slotting on alloy steels, stainless steel, and cast iron?"
The BEYOND KM12-63-C25-120L-4T is an elite industrial 90-degree indexable face and shoulder milling cutter built strictly to international ISO and ANSI cutting tool standards. Featuring a robust 25mm straight shank, an optimized 90-degree entering angle, a 63mm cutting diameter, an extended 120mm overall length ('L'), a 4-flute ('4T') high-density configuration, and precision SEKT1204/SEHT1204 insert pockets, this tool delivers exceptional metal removal rates and superior wall squareness during demanding machining operations. It integrates an advanced positive rake angle combined with a specialized chip breaker insert pocket geometry to minimize cutting forces, suppress harmonic vibration, and ensure flawless chip evacuation.
ISO / ANSI Nomenclature Breakdown: KM12-63-C25-120L-4T
90° Mill Series
Diameter Ø63mm
Shank Ø25mm
120mm Length
4 Flutes
2. Product Core Advantages
True 90-Degree Shoulder Architecture
Engineered to produce exact 90-degree right-angle walls, deep shoulder profiling, and precise multi-pass slotting without secondary finishing operations.
120mm Extended Reach & 4-Flute Density
Combines an extended 120mm overall length with a 4-flute high-density cutting layout to maximize feed rates and ensure smooth chip evacuation in deep cavities.
3. Technical Specifications
Metric vs. Imperial Comparative Specifications
| Metric Specification (KM12-63-C25-120L-4T) | Imperial Equivalent Specification |
|---|---|
| Shank Diameter: 25 mm | Shank Diameter: 0.9843 inches (approx. 1") |
| Cutting Diameter: 63 mm | Cutting Diameter: 2.4803 inches (approx. 2-15/32") |
| Entering Angle: 90 Degrees | Entering Angle: 90 Degrees |
| Overall Length: 120 mm | Overall Length: 4.7244 inches (approx. 4-23/32") |
| Flute Count: 4 Flutes (4T) | Flute Count: 4 Flutes (4T) |
| 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) | 120 - 180 m/min | 0.08 - 0.15 mm/tooth |
| Austenitic Stainless Steel | 70 - 120 m/min | 0.06 - 0.12 mm/tooth |
| Cast Iron (HT250 / GJL-250) | 100 - 160 m/min | 0.10 - 0.18 mm/tooth |
Need Precision 25mm Milling Collet Chucks or Holders?
Pair this 90-degree indexable face and shoulder milling cutter with our specialized heavy-duty milling tool holders and adapters.
Explore Compatible Milling Tool Holders →4. Product Application Scenarios
Optimized for heavy-duty 90-degree shoulder milling, deep pocket squaring, face flattening, slotting, and CNC machining centers utilizing SEKT1204 or SEHT1204 indexable carbide inserts.
5. Compatibility & Equipment
- Machine Compatibility: CNC Milling Centers, Heavy-Duty Vertical Machining Centers (VMCs), and Boring Mills with 25mm tool holding capacity.
- Workholding System: Fully compatible with precision milling collet chucks, milling chuck adapters, and standard CNC spindle toolholders.
- Insert Profile: Engineered strictly to accept standard ISO SEKT1204 and SEHT1204 indexable carbide inserts.
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 KM12-63-C25-120L-4T tool holder?
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' and '4T' designation signify in the model code?
A: '120L' indicates an extended 120mm overall length for deep shoulder milling, while '4T' designates a 4-flute indexable configuration for higher feed rates.
Q: How should cutting parameters be adjusted for a 63mm diameter tool during 90-degree shoulder profiling?
A: For 90-degree shoulder milling with a 63mm diameter, we recommend utilizing balanced radial depth of cut (Ae) with optimized spindle speeds and coolant application to maintain wall squareness and maximize insert lifespan.
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 chipping.
Vibration Mitigation: Maintain proper tool overhang and rigid toolholding to eliminate chatter during 120mm extended reach shoulder milling operations.
Grade Selection Tip
For heavy steel shoulder roughing, prioritize tough PVD/CVD-coated carbide grades that resist thermal shock and mechanical impact under high-feed conditions.
Authoritative Compliance Reference
Manufacturing tolerances and dimensional architectures comply fully with ISO 15641 (Milling cutters for indexable inserts) and ANSI B94.55M standards, backed by industrial metalworking benchmark studies documenting a 26% 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.