No.1 Lishe Road, Hetang District, Zhuzhou, Hunan, China
HPX 4 Flute Flat End Mill
Carbide End Mills

HPX 4 Flute Flat End Mill

• 4-flute flat end mill features ultra-fine grain carbide substrate and high-hardness nano coating, reaching HRC65 hardness. It delivers outstanding rigidity, wear resistance and stability, ideal for high-speed milling of hardened steel, mold steel and alloy steel. With excellent chip evacuation and smooth cutting, it ensures high precision and long tool life for side milling, slotting and profiling in CNC machining.

Recommended Materials

Mold Steel Hardened Steel Steel
  • Ultra-fine grain solid carbide substrate
  • Advanced PVD coating for heat & wear resistance
  • Precision ground geometry, tight tolerances
  • Custom sizes & OEM manufacturing available

Product Description

The HPX 4 Flute Flat End Mill is a high-performance solid carbide end mill engineered for precise, productive milling. Manufactured from premium ultra-fine grain tungsten carbide, it combines high hardness with the toughness needed for consistent, chatter-free cutting and a superior surface finish. It is optimized for machining mold steel, hardened steel and steel.

Precision edge preparation and a carefully engineered helix angle reduce cutting forces and improve chip evacuation, allowing higher feed rates without sacrificing accuracy. An advanced PVD coating lowers friction and dissipates heat, extending tool life even in continuous production.

Key Features

  • Sub-micron grain tungsten carbide substrate for an ideal balance of hardness and toughness
  • Precision-ground cutting edges hold tight diametral tolerances for accurate, repeatable results
  • Optimized helix angle evacuates chips cleanly and reduces cutting forces
  • Advanced nano-coating lowers friction and resists heat for extended tool life

Applications

Ideal for CNC milling, slotting, profiling, contouring and finishing. MSU Tools also manufactures custom geometries, coatings and dimensions to suit your specific material and application — contact our engineering team to discuss your requirements.

Specifications

SeriesCodeParameterDc(h7)Cange/FilletLCL1SD(h5)Teeth number
HPXHPEX4-033*8*C0.04*50*43C0.0485044
HPXHPEX4L-033*12*C0.04*75*43C0.04127544
HPXHPEX4-03P3*8*C0.04*50*63C0.0485064
HPXHPEX4L-03P3*12*C0.04*75*63C0.04127564
HPXHPEX4-044*12*C0.06*50*44C0.06125044
HPXHPEX4L-044*15*C0.06*75*44C0.06157544
HPXHPEX4-04P4*12*C0.06*50*64C0.06125064
HPXHPEX4L-04P4*15*C0.06*75*64C0.06157564
HPXHPEX4-055*13*C0.06*50*55C0.06135064
HPXHPEX4L-055*20*C0.06*75*65C0.06207564
HPXHPEX4-05L5*15*C0.06*50*55C0.06155064
HPXHPEX4-066*16*C0.08*50*66C0.08165064
HPXHPEX4-06L6*18*C0.08*50*66C0.08185064
HPXHPEX4L-066*20*C0.08*75*66C0.08207564
HPXHPEX4-088*20*C0.1*60*88C0.1206084
HPXHPEX4-08L8*24*C0.1*60*88C0.1246084
HPXHPEX4L-088*25*C0.1*75*88C0.1257584
HPXHPEX4X-088*25*C0.1*100*88C0.12510084
HPXHPEX4-1010*25*C0.1*75*1010C0.12575104
HPXHPEX4-10L10*30*C0.1*75*1010C0.13075104
HPXHPEX4L-1010*30*C0.1*100*1010C0.130100104
HPXHPEX4-1212*30*C0.12*75*1212C0.123075124
HPXHPEX4-12L12*35*C0.12*75*1212C0.123675124
HPXHPEX4L-1212*35*C0.12*100*1212C0.1236100124
HPXHPEX4-1414*34*C0.12*100*1414C0.1230100144
HPXHPEX4-1616*36*C0.15*100*1616C0.1536100164
HPXHPEX4-16L16*45*C0.15*100*1616C0.1545100164
HPXHPEX4L-1616*50*C0.15*150*1616C0.1550150164
HPXHPEX4-1818*40*C0.15*100*1818C0.1540100184
HPXHPEX4-2020*45*C0.15*100*2020C0.1545100204
HPXHPEX4L-2020*55*C0.15*150*2020C0.1555150204

Need a custom specification?

We manufacture bespoke carbide tools to your drawings — custom diameters, flute counts, coatings and tolerances.

Talk to an Engineer

Premium Quality

Ultra-fine grain carbide and advanced coatings for consistent, reliable performance.

High Performance

Optimized geometries deliver longer tool life and superior surface finish.

Custom Support

Tailored tooling and grades engineered to your material and application.

Global Service

Worldwide export with fast lead times and responsive technical support.