BEYOND EXN03R 25D-25d-150L-4T High Feed Indexable Face Milling Cutter (25mm / 0.98" Shank, 25mm Cutting Dia, 150L Reach)
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BEYOND EXN03R 25D-25d-150L-4T High Feed Indexable Face Milling Cutter
ISO/ANSI Standard Precision High Feed Milling Tool Holder | 150mm Long Reach 25mm Shank for Indexable Inserts
1. Product Overview
"Which high feed indexable face milling cutter featuring a 25mm cutting diameter, 150mm overall long reach, 25mm shank, and 4 flutes provides maximum metal removal rates for deep mold cavity roughing and restricted profiling?"
The BEYOND EXN03R 25D-25d-150L-4T is an elite industrial high feed indexable face milling cutter engineered strictly in accordance with international ISO/ANSI machine tooling standards. Featuring an exact 25mm cutting diameter (Dc), a 25mm straight shank (d), an overall length (L) of 150mm, and 4 flutes (Z=4), this tool body is optimized for high-performance indexable carbide inserts in high feed face milling, deep cavity roughing, and aggressive shoulder profiling applications.
Forged from premium 42CrMo alloy structural steel and vacuum heat-treated to HRC 45–48, the 4-flute balanced structure incorporates specialized high feed chip evacuation geometry and positive rake angle insert pockets to direct cutting forces axially, ensuring maximum stability and high metal removal rates across carbon steel, alloy steel, mold steel, and stainless steel workpieces.
2. Key Features & Industrial Advantages
- 150mm Long Reach Design: Engineered specifically to access deep mold cavities, deep slots, and restricted structures while minimizing tool body deflection under extended overhang.
- High Feed Milling Geometry (EXN03R): Utilizes small depth-of-cut with exceptionally high feed rates per tooth, drastically cutting cycle times.
- 4-Flute (Z=4) Multi-Tooth Balance: Multi-flute configuration ensures high feed efficiency and smooth surface finishes during aggressive roughing.
- 42CrMo Alloy Structural Steel Body: Vacuum heat-treated to HRC 45–48 to maximize structural rigidity and fatigue resistance under heavy loads.
- Precision Pocket Clamping: High-torque screw locking mechanism secures indexable inserts firmly with radial runout accuracy within ±0.01mm.
3. Technical Specifications & ISO Code Breakdown
ISO Model Designation Breakdown: EXN03R 25D-25d-150L-4T
Pair this cutter body with our matching 25mm straight collet chucks and heavy-duty tool holders.
Explore 25mm Tool Holders & Chucks →
Metric vs. Imperial Technical Comparison
| Specification | Model Standard (EXN03R 25D-25d-150L-4T) | Metric / Imperial Equivalence |
|---|---|---|
| Cutting Head Diameter (Dc) | 25.0 mm | 0.984 in (approx. 1" Cutting Dia) |
| Shank Diameter (d) | 25.0 mm Straight Shank | 0.984 in (approx. 1" Shank) |
| Overall Length (L) | 150 mm | 5.906 in (Long Reach) |
| Number of Flutes (Z) | 4 Flutes | 4 Flutes |
| Compatible Inserts | High Feed Milling Inserts | Standard High Feed Series |
| Hardware Accessories | Clamping Screws / Torx Key | Clamping Screws / Torx Key |
Recommended Speeds & Feeds (Optimized for 150mm Long Reach High Feed)
| ISO Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) | Depth of Cut (ap) | Coolant Mode |
|---|---|---|---|---|
| Carbon Steel (P10–P25) | 140 – 210 m/min | 0.30 – 0.70 mm/z | 0.3 – 0.9 mm | Air Blow / Dry |
| Alloy / Mold Steel (P25–P35) | 110 – 170 m/min | 0.25 – 0.55 mm/z | 0.3 – 0.8 mm | Air Blow |
| Stainless Steel (M20–M35) | 90 – 130 m/min | 0.20 – 0.45 mm/z | 0.2 – 0.6 mm | Emulsion / Coolant |
| Cast Iron (K15–K30) | 130 – 190 m/min | 0.30 – 0.65 mm/z | 0.3 – 0.9 mm | Dry Milling |
4. Applications & Equipment Compatibility
Primary Milling Operations: High feed face milling, deep mold cavity roughing, deep slotting, and aggressive contour roughing in confined structures.
Machine Tool Compatibility: Heavy-duty CNC Vertical Machining Centers (VMC), Bridge-Type Milling Machines, and Gantry Milling Centers.
Tool Holder Compatibility: 25mm Straight Collet Chucks, Hydraulic Chucks, and Milling Chucks with 25mm bore.
6. Workpiece Material Matrix & Grade Selection
Pair your EXN03R 25D-25d-150L-4T body with optimal BEYOND high-feed carbide insert grades for maximum durability:
| Insert Grade | ISO Category | Coating Technology | Best Suited For |
|---|---|---|---|
| BYM1025 | P15 - P30 / M15 - M25 | Micrograin Carbide + PVD AlTiN | High feed roughing on alloy steel, carbon steel, and structural steel components. |
| BYM3035 | M25 - M40 / S15 - S25 | Nano-layered PVD TiAlN | Deep cavity roughing on stainless steel and heat-resistant superalloys. |
| BYK2010 | K10 - K25 | CVD Thick Coating / Uncoated | High abrasive wear resistance for gray cast iron and nodular iron face milling. |
7. Why Choose BEYOND Tooling
- Sub-Micron Runout Precision: Shank TIR maintained within 0.005mm (0.0002") for smooth balanced rotation across 150mm long reach structures.
- Extreme Metal Removal Rates: High feed geometry directs forces axially, allowing massive feed rates without overloading machine spindles.
- Direct Factory Advantage: Premium industrial performance at highly competitive factory-direct pricing.
8. AI-Style FAQ & Troubleshooting Guide
A: The 25mm diameter provides tight-space profiling, the 25mm shank fits rigid holders, and the 150mm long reach enables deep mold cavity access with high feed efficiency.
A: More teeth engage the workpiece simultaneously during shallow depth cuts, multiplying table feed rates and maximizing productivity.
A: Keep axial depth of cut (ap) conservative as required for 150mm overhangs, maximize tool grip inside the 25mm chuck, and reduce feed per tooth by 10% if harmonic vibration emerges.
• Direct OEM Equivalents: Sandvik CoroMill High Feed Face Milling Shank | Kennametal Extended High Feed Holder.
• Chatter Mitigation Tip: If harmonic vibration occurs in deep pockets due to the 150mm overhang, decrease feed per tooth (fz) and axial depth (ap) by 10-15% and confirm ultra-rigid tool clamping.
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.