
BB® Tungsten Solid Carbide End Mills
From HRC 30 soft materials to HRC 62 hardened steel — from standard machining to vibration-prone applications. One brand covers it all.

Negative front angle and large chip space.Easier roughing and finishing processing.
Decreasing the times of changing cutters,Saving production time.
Helix Angle:35 deg, high adaptability to the material and hardness of workpieces, widely used to mold and product processing and cost efficient.
Coating:Good coating can improve tools life and production efficiency, as well as solve the cutting problems.



Dementions
Tolerance of End Mill Diameter:
1 < D≤6 -0.010 ~ -0.030
6 < D≤10 -0.015 ~ -0.040
10 < D≤ 20 -0.020~-0.050

General Machining Series Overview
BB2050 – Economy Entry
Grain Size: 0.8μm
Hardness: < HRC 35
Best for: Budget-conscious users, soft materials.
Color: Copper.
BB2055 –Basic
Density: 14.5 g/cm3
Hardness: HRA 92
Grain Size: 0.6um
Bending Strength: 3000N/mm2
General steel Hardness: < HRC 40
BK2055 – Standard General
Coating: TiSiN Enhanced (Black)
Suitable for milling general steel under HRC 45, stainless steel, hardened steel, etc
BL2060 – Blue Nano High-Temp
Coating: AlTiSiN, with the hardness and thermal stability are up to 4000HV and 1200 ℃, respectively.
Suitable for machining stainless steel, hardened steel, titanium alloy, etc.HRc<55.
Color: Blue.
Density: 14.5 g/cm3
Hardness: HRA 93
Grain Size: 0.4um
Bending Strength: 4000N/mm2
High-Hardness Machining (HRC 45~62)
BB2063
Cost-effective high-hardness solution.
TiSiN Advanced Composite
HRC 45~60
BK2063
-Geometry :45°
-For High hardness,HRC50~68
-Unique diamond coating technology, hardened milling cutter body.
-For Oxygen cutting material, welding parts, die steel, tool steel, heat treatment of high hard stainless steel, high hard material, etc
SKD11、718H、P20、Cr12、430、630.


Cutting Parameters
ap=1/3D(1/8-1/2D)
ae=1/2D(1/4-1D)
fz=0.15mm(0.02-0.2)
!Please adjust the parameters accroding to the material and hardness of workpieces.

Q&A
How do I choose?
A: Three steps:
1.Dynamic Milling or vibration issues? → Yes: Variable Flute Series; No: continue
2.What is your workpiece hardness? → Find your hardness tier
3.What's your budget? → Choose within your tier
What's the difference between BB2063 and BK2063?
A: BB2063 uses TiSiN coating for HRC 45~55, cost-effective; BK2063 uses DLC diamond coating for HRC 50~62, maximum wear resistance.
Are you using Dynamic Milling?
BK4055 Unequal spiral angle, asymmetric design, reduce vibration and improve stability.
Our Factory
Precise Quality Control Policy – From raw materials to finished products, we insist on a high standard of inspection to make sure every product shares equivalent and stable quality.

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