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Corner Rounding End Mill,Carbide Corner Round End Mills,CNC Endmills

Minimum Order Quantity : 10 pcs Price : Negotiation
Packaging Details : 1PC/ PVC Packing, 10pcs PVC Packing/Pack... Delivery Time : 1-35days
Payment Terms : T/T, L/C,Paypal... Supply Ability : 10000pcs/week
Place of Origin: MADE IN CHINA Brand Name: KTC
Certification: CCC Model Number: N550

Detail Information

Product Name: Corner Rounding End Mill,Carbide Corner Round End Mills,CNC Endmills Brand Name: KTC
Raw Material: YL10.2 / K30 Co: 10%
Hardness: >91.5HRA Cutting Diameter: As Requested
Upto: HRC55 Machine Type: CNC Milling Machine
Material: Carbide Precision: High Precision
High Light:

carbide mill bits


multi flute end mill

Product Description

Corner Rounding End Mill,Carbide Corner Round End Mills,CNC Endmills




End Mill Flutes - What Are They, and How Many Do I need?
The Spiral-shaped cutting edges on the side of the end mill are called flutes.
Flutes provide an empty path for the cutting chips to escape from when the end mill is rotating in a workpiece.
End Mills have either 2, 3 or 4 flutes per bit. 2 and 4 flutes are the most popular.
2 Flute End Mills (Slot drills):
For use on wood and aluminium
Fewer flutes are best for chip evacuation, keeping the bit cooler, but leaving a rougher surface cut.
2 flutes are best for use on Wood and aluminium as these produce very large chips in comparison to other materials.
2 flute end mills are also referred to as slot drills.
2 flute end mills for cutting slots, profiling, routing, plunge cutting on aluminium and wood
4 Flute End Mills:
For use on most other materials
4 flutes are used on most other materials, can cut harder materials than 2 flutes and will create an overall smoother surface finish.



N550 Carbide Corner Radius End mill cutter series adopt domestic high-quality fine grain tungsten steel material, flexural strength: 4100mpa, grain size: 0.8μm. There are two categories for aluminum and steel respectively. The internal R milling cutter for steel is coated by imported coating equipment (black / Bronze), especially suitable for aluminum, copper, ordinary medium and low carbon steel, alloy steel and other materials processing. With high precision quality control, and full inspection, all N550 series end mills are delivered with 100% qualification rate.


Raw Material YL10.2 / K30
WC 90%
Co 10%
TRS >4100N/mm2
Hardness >91.5HRA
A.O.L 50mm-75mm
Grain size 0.8μm
Upto HRC55
Flutes No 4F
Suitable for Aluminum,plastic and other materials


Standard Sizes

Name Size
Corner Radius End Mills/Milling cutters φ4*50*Inner R0.5-2T/4T
φ4*50*Inner R0.75-2T/4T

φ4*50*Inner R1-2T/4T

φ6*50*Inner R1-2T/4T
φ6*50*Inner R1.5-2T/4T
φ6*50*Inner R2-2T/4T
φ8*50*Inner R2.5-2T/4T
φ8*50*Inner R3-2T/4T
φ10*60*Inner R4-4T
φ12*60*Inner R5-4T
φ14*75*Inner R6-4T

Corner Rounding End Mill,Carbide Corner Round End Mills,CNC Endmills 0




Excellent surface roughness thanks to Mirror Face of cutting edges.
Special flute geometry eliminates vibrations
Precise tolerance of outside diameter is applied.


Advanced Equipment

  • ANCA & for producing end mills
  • PG1000 & PARLEC for detecting


4.Wide Application

HRC50 suitable for Iron, Cast Iron, Common Steel under hardness HRC45

HRC55 suitable for Iron, Cast Iron, Common Steel, Hardened Steel under hardness HRC55

HRC60 suitable for Pre-hardened steel; Stainless steel; Alloy steel; Die steel under HRC60

HRC65 suitable for Hardened steel; Mold steel; Die steel; Alloy steel above HRC60


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