Kyocera Z4T 0250 050 0400 R050 100 Carbide CEM03965 ENDMILL
-40 %
Kyocera Z4T 0250 050 0400 R050 100 Carbide CEM03965 ENDMILL
$22.43 USD
$37.38 USD
1 or more $22.43 USD
- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: CEM03965
Kyocera Z4T Series Solid Carbide Endmill — CEM03965
Product Overview
The Kyocera Z4T 0250 050 0400 R050 ENDMILL (CEM03965) is a precision-engineered solid carbide endmill designed for high-performance CNC milling operations. Featuring a 0.50mm corner radius and 2.50mm cutting diameter, this Large Radius tool delivers exceptional performance in heavy roughing, high-feed milling, and maximum edge durability. The Z4T series 4-flute geometry with 1.0x Extended configuration is optimized for deep cavity work, mold and die machining, and extended-reach profiling, providing superior chip evacuation, minimized cutting forces, and extended tool life in demanding production environments.
The robust 0.50mm corner radius delivers maximum edge strength for aggressive material removal rates and extended roughing cycles. Slightly extended reach for shallow cavity work and light overhang applications.
ISO Designation Breakdown
| Designator | Value | Description |
|---|---|---|
| Z4T | Series Code | 4-Flute Solid Carbide Endmill with Corner Radius |
| 0250 | 2.50 mm | Nominal Cutting Diameter (D) |
| 050 | 0.50 mm | Shank Diameter (d) |
| 0400 | 4.00 mm | Length of Cut / Flute Length (L2) |
| R050 | 0.50 mm | Corner Radius (r) — Large Radius |
| 100 | 1.0x Extended | Overall Length Configuration (L1) |
| CEM03965 | MPN | Manufacturer Part Number (Kyocera Catalog Reference) |
Engineering Dimensions & Geometry
| Parameter | Symbol | Value | Tolerance |
|---|---|---|---|
| Cutting Diameter | D | 2.50 mm | h6 |
| Shank Diameter | d | 0.50 mm | h6 |
| Length of Cut | L2 | 4.00 mm | ±0.05 mm |
| Overall Length | L1 | 19.00 mm (1.0x Extended) | ±0.10 mm |
| Corner Radius | r | 0.50 mm | ±0.005 mm |
| Number of Flutes | Z | 4 | — |
| Helix Angle | λ | 30° | ±1° |
| Core Diameter Ratio | Dc | 0.65 × D | — |
| Surface Finish Capability | Ra | Standard Finish (Ra 0.6–1.2 μm) | — |
Grade Details — Key Grade Characteristics
The Z4T series utilizes Kyocera's premium sub-micron grain carbide substrate with advanced PVD coating technology, specifically formulated for this Large Radius endmill configuration. The grade is engineered to provide optimal wear resistance and thermal stability for heavy roughing, high-feed milling, and maximum edge durability.
| Property | Value | Performance Impact |
|---|---|---|
| Hardness | 92.2 HRA | Exceptional wear resistance for extended tool life in heavy roughing, high-feed milling, and maximum edge durability |
| Transverse Rupture Strength | 4300 MPa | High mechanical strength resists chipping under heavy loads and interrupted cuts |
| Grain Size | 0.5 μm (Sub-Micron) | Fine edge stability and superior surface finish capability |
| Coating | TiAlN Multi-Layer PVD | Oxidation resistance up to 900°C; reduced built-up edge |
| Coating Thickness | 2.5 ± 0.3 μm | Optimal balance between protection and edge sharpness |
| Cobalt Content | 10.5 wt% | Enhanced binder phase for improved toughness and shock resistance |
| Friction Coefficient | 0.35 (vs. Steel) | Reduced cutting forces and heat generation |
Grade Comparison Matrix
| Grade | Coating | Best For | Max Temp | Relative Wear |
|---|---|---|---|---|
| Z4T (This Tool) | TiAlN PVD | Steel, Stainless, Cast Iron | 900°C | ★★★★★ |
| Z2T Series | TiN PVD | General Purpose, Low Alloy | 600°C | ★★★☆☆ |
| Z3T Series | TiCN PVD | Hardened Steel <55 HRC | 750°C | ★★★★☆ |
| Z5T Series | AlCrN PVD | Titanium, Inconel, HRSA | 1000°C | ★★★★★ |
Chipbreaker Profile
The Z4T series features an optimized 4-flute geometry with variable helix angles and precision-ground chipbreaker grooves designed to enhance chip evacuation and reduce harmonic vibration during high-speed milling. This Large Radius configuration includes specialized edge preparation for heavy roughing, high-feed milling, and maximum edge durability.
| Feature | Specification | Functional Benefit |
|---|---|---|
| Flute Profile | Concave Parabolic | Improved chip curl and controlled chip evacuation |
| Rake Angle | +8° (Positive) | Reduced cutting force; lower heat generation |
| Clearance Angle | 12° Primary / 25° Secondary | Prevents rubbing; maintains edge sharpness |
| Chipbreaker Width | 0.08 × D | Optimal chip segmentation for 2.50mm diameter |
| Variable Helix | 28°–32° (Flute-to-Flute) | Suppresses chatter and harmonic resonance |
| Corner Radius Geometry | 0.50mm Tangent Blend | Enhanced corner strength; improved surface finish |
| Edge Preparation | T-Land + Micro-Hone | Protects against micro-chipping in heavy roughing, high-feed milling, and maximum edge durability |
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Hardness Range | Machinability | Recommended? |
|---|---|---|---|---|
| Carbon Steel / Low Alloy | P.1–P.3 | < 30 HRC | Excellent | ✓ Highly Recommended |
| Alloy Steel / Tool Steel | P.4–P.6 | 30–45 HRC | Good | ✓ Recommended |
| Stainless Steel (Austenitic) | M.1–M.2 | < 30 HRC | Good | ✓ Recommended |
| Stainless Steel (Martensitic) | M.3 | 30–40 HRC | Moderate | △ Conditional |
| Cast Iron (Gray / Ductile) | K.1–K.3 | 150–250 HB | Excellent | ✓ Highly Recommended |
| Aluminum / Al Alloys | N.1–N.3 | < 100 HB | Excellent | ✓ Recommended |
| Titanium / Ti Alloys | S.1–S.2 | < 35 HRC | Difficult | △ Conditional |
| Hardened Steel (>45 HRC) | H.1 | 45–55 HRC | Poor | ✗ Not Recommended |
Application Map by Operation
| Operation Type | Suitability | Optimal ae/D Ratio | Notes |
|---|---|---|---|
| Profile Milling (Side) | ★★★★★ Excellent | 0.3–0.8 × D | Primary application; best surface finish with 0.50mm radius |
| Slotting (Full Width) | ★★★★☆ Good | 1.0 × D | Reduce Vc by 20%; ensure adequate coolant for chip evacuation |
| Pocket Milling | ★★★★★ Excellent | 0.4–0.7 × D | Trochoidal path recommended for deep pockets; 1.0x Extended ideal for cavity depth |
| Contour / 3D Surfacing | ★★★★☆ Good | 0.1–0.3 × D | 0.50mm radius ideal for smooth transitions and blended corners |
| Ramping / Helical Entry | ★★★☆☆ Moderate | — | Max ramp angle 3°; use peck cycle for deep entry with 1.0x Extended |
| High-Feed Milling | ★★★☆☆ Moderate | 0.05–0.15 × D | Use dedicated high-feed strategy; limited by 2.50mm diameter |
| Plunge Milling | ★★☆☆☆ Poor | — | Not recommended; 4-flute design lacks center cutting capability |
Recommended Cutting Conditions
Parameters are provided as starting recommendations for this Large Radius 1.0x Extended tool. Adjust based on machine rigidity, workpiece clamping, and coolant delivery. Values assume external flood coolant or through-spindle coolant (TSC) where available. Standard surface finish; optimized for material removal rate and tool life rather than cosmetic quality.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Tooth fz (mm) | Axial Depth ap (mm) | Radial Depth ae (mm) |
|---|---|---|---|---|
| Carbon Steel (P.1) | 111 | 0.024 | 3.00 | 1.38 |
| Alloy Steel (P.3) | 101 | 0.022 | 2.70 | 1.10 |
| Stainless Steel (M.1) | 67 | 0.019 | 2.40 | 0.96 |
| Cast Iron (K.2) | 103 | 0.026 | 3.30 | 1.65 |
| Aluminum Alloy (N.2) | 266 | 0.043 | 3.60 | 2.06 |
| Finishing (All Materials) | +15% above roughing | 0.014 | 1.20 | 0.38 |
Operating Guidelines
- Runout Tolerance: Maintain TIR (Total Indicator Reading) below 0.005 mm at the tool tip. Excessive runout reduces tool life by up to 50% and degrades surface finish quality.
- Coolant Strategy: Flood coolant at 6–8 bar pressure is recommended for steel and stainless. For aluminum, air blast or MQL (Minimum Quantity Lubrication) may be preferred to prevent built-up edge. Extended overhang requires reduced radial engagement (ae ≤ 0.4 × D) to maintain dimensional accuracy.
- Entry Method: Use helical or ramp entry at 2–3° maximum angle. Avoid direct plunge; this tool is not center-cutting. For 1.0x Extended tools, reduce entry feed by 25%.
- Corner Radius Engagement: When utilizing the 0.50mm corner radius for finishing, limit radial engagement (ae) to 0.38 mm to achieve standard finish (ra 0.6–1.2 μm) surfaces.
- Chip Evacuation: Ensure adequate coolant flow to flush chips from the cutting zone. Recutting chips causes premature flank wear and edge chipping, particularly with Large Radius geometries.
- Tool Overhang: Minimize overhang to 4 × D or less. For 1.0x Extended configuration, use extended-reach holders or reduce cutting parameters by 15–20% to control deflection.
- Spindle Warm-Up: Run spindle at operating speed for 10 minutes before precision operations to ensure thermal stability and minimize size variation.
- Tool Change Interval: Monitor flank wear (VB). Replace when VB exceeds 0.15 mm for roughing or 0.05 mm for finishing operations. Large Radius tools typically show corner wear first.
- Speeds & Feeds Validation: Start at 80% of recommended Vc and fz for the first 10 minutes of operation, then increase to full parameters once tool engagement is verified stable.
Toolholder Compatibility
| Holder Type | Compatible Diameter | Clamping Method | Runout Class | Application |
|---|---|---|---|---|
| ER Collet Chuck (ER11/ER16) | 0.50 mm | Radial Clamping | Standard (< 0.01 mm) | General Milling |
| Hydraulic Expansion Chuck | 0.50 mm | Hydraulic Clamping | Precision (< 0.005 mm) | High-Speed Finishing |
| Shrink Fit Holder | 0.50 mm | Thermal Interference | Ultra-Precision (< 0.003 mm) | High-Speed / Hard Milling |
| Milling Chuck (Power Chuck) | 0.50 mm | Mechanical Wedge |
