China 4-Flute Flat End Mill with Weldon Shank CNC Milling Cutter for General Machining Manufacturer, Factory

This high-performance 4-flute flat end mill features a Weldon flat shank, ensuring a secure, non-slip grip in side-lock tool holders for reliable high-torque machining. The sharp cutting edges  provide excellent wear resistance and heat dissipation. Engineered for precision slotting, profiling, and general milling, it delivers smooth finishes and extended tool life on steel, stainless steel, and cast iron

Product Description

Our Normal Sizes
Item Code Number of Flutes Cutting Dia (mm) Shank Dia (mm) Flute Length (mm) Total Length (mm)
APHP4E-D1.0-H441.04350
APHP4E-D1.5-H441.54450
APHP4E-D2.0-H442.04650
APHP4E-D2.5-H442.54850
APHP4E-D3.0-H443.04850
APHP4E-D4.0-H444.041150
APHP4E-D1.041.06350
APHP4E-D1.541.56450
APHP4E-D2.042.06650
APHP4E-D2.542.56850
APHP4E-D3.043.06850
APHP4E-D3.543.561050
APHP4E-D4.044.061150
APHP4E-D4.544.561150
APHP4E-D5.045.061350
APHP4E-D5.545.561650
APHP4E-D6.046.061650
APHP4E-D7.047.082060
APHP4E-D8.048.082060
APHP4E-D9.049.0102275
APHP4E-D10.0410.0102575
APHP4E-D11.0411.0122675
APHP4E-D12.0412.0123075
APHP4E-D14.0414.01432100
APHP4E-D16.0416.01645100
APHP4E-D18.0418.01845100
APHP4E-D20.0420.02045100

* Other sizes could be made as per customers’ requirement.

Product Overview & Capabilities

Core Machining Capabilities

Designed for high-precision slotting, contouring, and general milling across a wide range of materials, including steel, stainless steel, cast iron, and non-ferrous metals. The 4-flute geometry ensures excellent chip evacuation and superior surface finish, making it ideal for 3C electronics, precision molds, and general CNC machining.

Structural Design & Stability

Featuring a Weldon Shank (flat on the side), this end mill guarantees a secure, non-slip grip in side-lock tool holders, effectively preventing tool pullout during high-torque or heavy-load cutting operations. The short-flute and reinforced core design maximize tool rigidity, minimizing deflection and vibration to ensure stable machining even under demanding conditions.

Premium Material & Precision Manufacturing

Manufactured from Nano-Grain Tungsten Carbide, the tool delivers exceptional wear resistance and high transverse rupture strength, providing a longer tool life compared to standard carbide. Every tool is inspected under high magnification to ensure sharp, burr-free cutting edges and perfect edge symmetry, maintaining precise tolerances (within ±0.005mm) for critical applications.

Industrial Strength & Customization

Backed by a robust inventory for immediate supply, with a capacity of 10,000 pcs/month. We offer standard sizes as well as customized neck lengths and overall reach to clear specific workpiece obstructions while maximizing tool diameter for optimal strength. Full process quality traceability ensures batch-to-batch consistency, guaranteeing reliable performance for automated production lines.

Frequently Asked Questions
Q What materials is the "Bronze/Copper" series best for?
A It is optimized for Carbon Steel, Alloy Steel, Cast Iron, and Pre-hardened Steel up to HRC 50. It is the most versatile "all-rounder" in our catalog.
Q Can I use this for Aluminum?
A While it can cut aluminum, a 4-flute tool is prone to chip clogging in soft non-ferrous metals. For Aluminum, we strongly recommend our 3-Flute DLC or Uncoated series for better chip evacuation.
Q Is this coating better than the standard Black (AlTiN) coating?
A The Bronze/Copper-colored coating (TiSiN-based) typically offers better silicon-enhanced heat resistance, making it slightly superior for harder alloys and dry-cutting conditions compared to basic AlTiN.
Q What is the recommended coolant?
A Emulsion (Water-soluble oil) or MQL (Minimum Quantity Lubrication) is recommended. For steels under HRC 40, liquid coolant helps extend the life significantly.
Q Why choose 4 flutes instead of 2?
A Choose 4 flutes for finishing, side milling, and whenever you need a stronger tool that won't bend. Choose 2 flutes only when you need maximum chip space for very deep slotting or drilling-style entries.
Q Are these tools ISO certified?
A Yes, our entire production process is ISO9001:2015 certified, ensuring that every tool from the first to the millionth meets the same strict quality standards.

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