BEYOND TC20° C20-45-120-2T Indexable Milling Cutter / Tool Holder (20mm / 0.79" Shank, 45mm Cutting Diameter, 120mm Length, 2 Flutes) - TCMT16T304 Inserts Not Included
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BEYOND TC20° C20-45-120-2T CNC Indexable Milling Cutter Tool Holder
ISO/ANSI Standard Precision Milling Tooling with 20mm Shank, 45mm Cutting Diameter, 2 Flutes & TCMT16T304 Pocket
1. Product Overview
"Which indexable milling cutter featuring a 20mm shank, 45mm cutting diameter, 120mm overall length, 2 flutes, and TCMT16T304 insert pockets is best engineered for precision face milling, slotting, and shoulder milling on alloy, carbon steels, and stainless steel?"
The BEYOND TC20° C20-45-120-2T is an elite industrial indexable milling cutter built strictly to international ISO and ANSI cutting tool standards. Featuring a robust 20mm straight shank paired with a 45mm cutting diameter, 120mm overall length, and a dual-flute (2T) architecture, this tool utilizes indexable carbide inserts matching the TCMT16T304 geometry. It integrates an optimized positive rake angle combined with an advanced chip breaker insert pocket design to minimize cutting forces, reduce vibration during aggressive milling operations, and promote seamless chip evacuation.
ISO / ANSI Nomenclature Breakdown: TC20° C20-45-120-2T
Tri. Insert
20° Angle
Shank Ø20mm
Cutting Ø45mm
Length 120mm
2 Flutes
2. Product Core Advantages
Rigid 20mm Shank & 45mm Diameter
The heavy-duty 20mm steel shank paired with a 45mm cutting profile delivers maximum deflection resistance and stable high-feed milling execution.
Precision TCMT16T304 Insert Pockets (2 Flutes)
Engineered with dual-flute exact positioning pockets to lock TCMT triangular carbide inserts securely, eliminating harmonic chatter and ensuring exceptional surface finishes.
3. Technical Specifications
Metric vs. Imperial Comparative Specifications
| Metric Specification (TC20° C20-45-120-2T) | Imperial Equivalent Specification |
|---|---|
| Shank Diameter: 20 mm | Shank Diameter: 0.7874 inches (approx. 25/32") |
| Cutting Diameter: 45 mm | Cutting Diameter: 1.7717 inches (approx. 1-25/64") |
| Overall Length: 120 mm | Overall Length: 4.7244 inches (approx. 4-23/32") |
| Flute Count: 2 Flutes (2T) | Flute Count: 2 Flutes |
| Compatible Insert: TCMT16T304 | Compatible Insert: TCMT32.51 (ANSI) |
Recommended Cutting Parameters (Feed & Speed Guidance)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate per Tooth (fz) |
|---|---|---|
| Carbon / Alloy Steel (HB 180-280) | 150 - 240 m/min | 0.08 - 0.18 mm/tooth |
| Austenitic Stainless Steel | 100 - 170 m/min | 0.06 - 0.14 mm/tooth |
| Cast Iron (HT250 / GJL-250) | 130 - 200 m/min | 0.10 - 0.22 mm/tooth |
Need Precision 20mm Milling Collet Chucks or Holders?
Pair this indexable milling cutter with our specialized straight shank collet chucks and CNC milling holders.
Explore Compatible Milling Tool Holders & Sleeves →4. Product Application Scenarios
Optimized for face milling, shoulder milling, slotting, pocketing, CNC machining center operations, and high-efficiency material removal requiring TCMT16T304 carbide inserts.
5. Compatibility & Equipment
- Machine Compatibility: CNC Milling Centers, CNC Gantry Mills, and Vertical/Horizontal Machining Centers with 20mm milling chuck capacity.
- Workholding System: Fully compatible with straight shank collet chucks (ER collets), weldon holders, and milling arbor extensions matching a 20mm shank diameter.
- Insert Profile: Engineered strictly to accept standard ISO TCMT16T304 indexable carbide inserts across 2 cutting flutes.
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 TCMT16T304 carbide inserts included with the BEYOND TC20° C20-45-120-2T milling cutter?
A: No. Inserts are sold separately so machine operators can precisely match specific carbide grades to their workpiece material requirements.
Q: What is the cutting diameter and flute count of this milling tool?
A: The tool features a 45mm cutting diameter across a robust dual-flute (2T) indexable geometry.
Q: What type of machine spindles are compatible with the 20mm shank?
A: The 20mm straight shank is fully compatible with standard CNC milling chucks, collets, and tool holding adapters.
Technical Support & Compliance Reference
Troubleshooting Tips
Insert Seating: Ensure that the insert pocket is thoroughly cleared of chips before locking the TCMT16T304 inserts to prevent runout and premature edge chipping.
Runout Control: Verify spindle runout and tool clamping pressure to ensure even load distribution across all 2 cutting flutes during high-speed milling.
Grade Selection Tip
For milling austenitic stainless steels, choose specialized PVD-coated grades that inhibit built-up edge formation and withstand elevated cutting temperatures.
Authoritative Compliance Reference
Manufacturing tolerances and dimensional architectures comply fully with ISO 1641 (Milling cutters with indexable inserts) and ANSI B94.55M standards, backed by industrial metalworking benchmark studies documenting a 15% increase in face milling stability.
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.