Carbide 4 Flutes Ballnose End Mill for Steel

High-performance 4-flute carbide ball nose end mill for steel machining. Wear-resistant coating, smooth 3D contouring, superior chip evacuation, and precise finishing.

Carbide 4 Flutes Ballnose End Mill for Steel

Product Highlights

Solid carbide 4-flute ball nose end mill for steel machining
Optimized for P20, H13 tool steel, and stainless steel
Semi-finishing and finishing operations supported
Wear-resistant coating ensures heat resistance and long tool life
4-flute geometry allows higher feed rates and smooth surface finish
Ball nose design enables precise 3D contouring and profiling
Stable cutting performance with reliable chip evacuation
Ideal for mold, die, and complex precision parts
Available in standard and customized sizes
OEM/ODM support for coating type, tolerances, and specifications
Private labeling, laser marking, and customized packaging available
Consistent quality control for mass production and long-term supply

Standard Sizes

Specification	Flute Dia (mm)	Flute Length (mm)	Shank Dia (mm)	Overall Length (mm)
R1.5×6×D4×50L×4F	R1.5	6	4	50
R2×8×D4×50L×4F	R2	8	4	50
R3×12×D6×50L×4F	R3	12	6	50
R4×16×D8×60L×4F	R4	16	8	60
R5×20×D10×75L×4F	R5	20	10	75
R6×24×D12×75L×4F	R6	24	12	75
R8×32×D16×100L×4F	R8	32	16	100

Factory Advantage / Manufacturing Capability

Advanced CNC Production – High-precision CNC grinding and milling for consistent tool geometry
Full Material Traceability – All carbide rods and raw materials fully traceable for quality assurance
Custom OEM/ODM Support – Private labeling, laser marking, custom coatings, and packaging available
Experienced R&D Team – Supports tool design optimization, material selection, and coating recommendations
Stringent Quality Control – Multi-stage inspection ensures reliable tool performance
Large Production Capacity – Capable of handling bulk orders and repeat OEM/ODM contracts
Global Supply Readiness – Stable logistics and packaging solutions for international shipping
Technical & After-Sales Support – Cutting parameters, troubleshooting, and replacement solutions

OEM / ODM FAQ

What is your MOQ for steel end mills?
No MOQ for standard carbide end mills. OEM/ODM MOQ depends on customization.

What is the lead time for OEM/ODM orders?
Standard products: 7–15 working days. OEM/ODM cutting tools: 15–30 working days.

How do you ensure quality control?
All steel carbide end mills undergo raw material inspection, in-process QC, and final inspection before shipment.

Do you provide samples for evaluation?
Yes, samples are available for testing. Sample costs can be refunded after bulk orders.

What after-sales support do you offer?
Technical support, fast response to quality issues, and replacement for verified defects.

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