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Home > AST Homemade Produc... > Carbide Endmills > Endmill Ball > BEM Carbide Ball E... > BEM4-ST
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BEM Solid Carbide Ball End Mill with Four Cutting Edges -- Economical Type
Features:
1、All dimension is fixed by our norm and also accept non standard order.
2、Tolerance of dc≤3mm 0/-0.02, dc>3mm 0/-0.03
3、Tolerance of shank h6
4、R0.5~R3, tolerance of R±0.005, R4~R6, tolerance of R±0.007, R7~R16, tolerance of R ±0.01
5、Helix angle 35°
Universal Endmills-High-performance Type/Basic Type/Economical Type
Application Variety

Features--of HTA Series High-performance Endmills:
□ Carefully selected High-strength carbide and coating cemented carbide, improve the oxidation resistance, heat resistance, wear resistance.

□ Fewer macroparticles on film surface result in improved smoothness. Reduced abrasion and better deposition resistance improved wear and adhesion resistance.

□ Unique geometry improves chip removal and tools rigidity. So the tools can machine≤HRC55 following materials: stainless steel, heat-resistant alloys, titanium, nickel alloys, cast iron, copper alloys, etc.
□ High performance carbide material ensure longer tool life and high efficiency.
Features--of STA Series Basic Type Endmills:
□ Carefully selected High-strength carbide and coating cemented carbide, improve the oxidation resistance, heat resistance, wear resistance.
□ Superior chipping, wear resistance,and better surface roughness from special cutting edge and margin shape .
□ Aplly to very wide work materials.
□ STA:economical and high performance carbide meterial.
Features--of ST Series Economical Type Endmills:
□ Better heat and wear resistance from ST coating for a long life.
□ Aplly to very wide work materials.
□ Superior chipping, wear resistance,and better surface roughness from special cutting edge and margin shape .
□ Economical and high performance carbide material.
Application Work Material:
| Series | Work Material | |||||||||||||
| Structural Steel | Carbon Steel | Alloy Steel | Pre-hardened Steel | Hardened Steel | Stainless Steel | Titanium Alloys, Nickel Alloys | Cast Irons | Aluminum Alloys | Copper Alloys | Plastic | ||||
| HRC30-45 | HRC45-55 | HRC55-60 | >HRC60 | |||||||||||
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| HTA |
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(◎ Most Suitable ○ Suitable)
Difference between ST/STA/HTA Series:
| Series | Design of cutting edge | Carbide Material | Coating |
| ST | Unique shape of cutting edge suitable for very wide work materials | Economical carbide material | Economical universal coating |
| STA | Unique shape of cutting edge suitable for very wide work materials | Normal carbide material | High-performance coating especially suitable for endmills |
| HTA | Unique shape of cutting edge suitable for very wide work materials | High-performance carbide material | High-performance coating especially suitable for endmills |
Type available and Diameter ranges
EM2:D1.5~32.0mm EM3:D2.0~32.0mm EM4:D4.0~32.0mm
LEM2:D2.0~4.0mm LEM4:D2.0~6.0mm
REM2:D1.0~20.0mm REM4:D3.0~20.0mm
LREM2:D2.0~6.0mm LREM4:D3.0~12.0mm
BEM2:R1.0~6.0mm BEM3:R2.0~16.0mm BEM4:R2.0~16.0mm
LBEM2:R1.0~2.0mm
| Economical type Order No. | Spherical Radius | Flute Length | Shank Diameter | Overall Length |
| ST Series (Coating) | R | lc | ds | lo |
| BEM40400600ST | 2.0 | 6 | 6 | 70 |
| BEM40500500ST | 2.5 | 5 | 6 | 60 |
| BEM40500800ST | 2.5 | 8 | 6 | 80 |
| BEM40600600ST | 3.0 | 6 | 6 | 60 |
| BEM40600900ST | 3.0 | 9 | 6 | 80 |
| BEM40700800ST | 3.5 | 8 | 8 | 80 |
| BEM40701200ST | 3.5 | 12 | 8 | 90 |
| BEM40800800ST | 4.0 | 8 | 8 | 80 |
| BEM40801200ST | 4.0 | 12 | 8 | 90 |
| BEM41001000ST | 5.0 | 10 | 10 | 80 |
| BEM41001500ST | 5.0 | 15 | 10 | 100 |
| BEM41201200ST | 6.0 | 12 | 12 | 80 |
| BEM41201800ST | 6.0 | 18 | 12 | 110 |
| BEM41601600ST | 8.0 | 16 | 16 | 80 |
| BEM41602400ST | 8.0 | 24 | 16 | 120 |
| BEM42002000ST | 10.0 | 20 | 20 | 100 |
| BEM42003000ST | 10.0 | 30 | 20 | 140 |
| BEM42502500ST | 12.5 | 25 | 25 | 100 |
| BEM42504000ST | 12.5 | 40 | 25 | 150 |
| BEM43203200ST | 16.0 | 32 | 32 | 105 |
| BEM43204800ST | 16.0 | 48 | 32 | 160 |
