SSPBL220
CBN Super Spiral Long Neck Ball End Mill
●Added longer effective length type to SSPB220 series．
●Realized deeper milling by adoption of spiral ball shape and strong back taper shape to improve both sharpness and the chipping resistance of cutting edges．
Material
CubicBoron Nitride
Cutting Possibility of Work Material Hardness
Up to 70HRC
Number of Flutes
2 Flutes
Helix Angle
20°
Conner
±0.003
φd h4
Applications
3D Milling
Work Materials
Machinable indication by 
, 
,
| Carbon Steel | Alloy Steel | Prehardened Steel | Hardened Steel | Stainless Steel | Heat Resistant Alloy | Aluminum Alloy | Copper | Resin | Graphite | Hard Brittle Material | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ～ 52HRC |
～ 60HRC |
～ 65HRC |
～ 70HRC |
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| Carbon Steel | Heat Resistant Alloy |
|||
|---|---|---|---|---|
| Alloy Steel | Aluminum Alloy | |||
| Prehardened Steel |
Copper | |||
| Hardened Steel |
～ 52HRC |
|
Resin | |
| ～ 60HRC |
|
Graphite | ||
| ～ 65HRC |
|
Hard Brittle Material |
||
| ～ 70HRC |
|
Hard Brittle Material |
||
| Stainless Steel | ||||
Leaflet
