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.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.