No.1 Lishe Road, Hetang District, Zhuzhou, Hunan, China
GP-4 Solid Carbide 4 Flute Corner Radius End Mill
Carbide End Mills

GP-4 Solid Carbide 4 Flute Corner Radius End Mill

GP-4 solid carbide 4 flute corner radius end mill with advanced grinding technology ensures ultra-high diameter accuracy, ideal for precision mold and parts machining. High wear-resistant coating and corner radius design provide excellent chipping resistance and longer tool life when cutting steels and hardened mold steels.

Recommended Materials

Mold 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 GP-4 Solid Carbide 4 Flute Corner Radius 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 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

SeniesCodeParameterDc(h7)FiletLCL1SD(h5)Teeth number
GPGPR4-01-021*R0.2*3*50*41R0.235044
GPGPR4-015-021.5*R0.2*4*50*41.5R0.245044
GPGPR4-02-022*R0.2*6*50*42R0.265044
GPGPR4-03-033*R0.3*8*50*43R0.385044
GPGPR4-03-053*R0.5*8*50*43R0.585044
GPGPR4-04-024*R0.2*12*50*44R0.2125044
GPGPR4-04-054*R0.5*12*50*44R0.5125044
GPGPR4-04-104*R1*12*50*44R1125044
GPGPR4-04-02A4*R0.2*12*75*44R0.2127544
GPGPR4-04-05A4*R0.5*12*75*44R0.5127544
GPGPR4-04-10A4*R1*12*75*44R1127544
GPGPR4-04-02B4*R0.2*12*100*44R0.21210044
GPGPR4-04-05B4*R0.5*12*100*44R0.51210044
GPGPR4-04-10B4*R1*12*100*44R11210044
GPGPR4-05-025*R0.2*13*50*65R0.2135064
GPGPR4-05-055*R0.5*13*50*65R0.5135064
GPGPR4-05-105*R1*13*50*65R1135064
GPGPR4-06-026*R0.2*16*50*66R0.2135064
GPGPR4-06-056*R0.5*16*50*66R0.5165064
GPGPR4-06-106*R1*16*50*66R1165064
GPGPR4-06-156*R1.5*16*50*66R1.5165064
GPGPR4-06-02A6*R0.2*16*75*66R0.2167564
GPGPR4-06-05A6*R0.5*16*75*66R0.5167564
GPGPR4-06-10A6*R1*16*75*66R1167564
GPGPR4-08-028*R0.2*20*60*88R0.2206084
GPGPR4-08-058*R0.5*20*60*88R0.5206084
GPGPR4-08-108*R1*20*60*88R1206084
GPGPR4-08-158*R1.5*20*60*88R1.5206084
GPGPR4-08-208*R2*20*60*88R2206084
GPGPR4-08-05A8*R0.5*20*75*88R0.5207584
GPGPR4-08-10A8*R1*20*75*88R1207584
GPGPR4-08-15A8*R1.5*20*75*88R1.5207584
GPGPR4-08-20A8*R2*20*75*88R2207584
GPGPR4-08-05B8*R0.5*20*100*88R0.52010084
GPGPR4-08-10B8*R1*20*100*88R12010084
GPGPR4-08-15B8*R1.5*20*100*88R1.52010084
GPGPR4-08-20B8*R2*20*100*88R22010084
GPGPR4-10-0210*R0.2*25*75*1010R0.22575104
GPGPR4-10-0510*R0.5*25*75*1010R0.52575104
ItemSpecification
Tool typeSolid carbide 4 flute corner radius end mill
MaterialPremium micro-grain carbide
Geometry4 flutes, corner radius, center cutting / non-center cutting
Corner radiusMultiple corner radius options for different shoulder strength and surface requirementsuff08 R0.5 / R1 / R2 /R4uff09
CoatingHigh wear-resistant coating (TiAlN / AlTiN, etc.)
Work materialsCarbon steel, alloy steel, pre-hardened mold steel, cast iron.
Machine typeCNC machining center, milling machine

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.