BBT Tool Holders
BBT Dual-Contact Tool Holders
Dual-contact BBT holders from the SUNSTONE 2026 catalog increase interface rigidity and reduce vibration for demanding machining.
Catalog-matched product information.
Dual-Contact ER Collet Chucks
Simultaneous taper-and-flange contact increases rigidity, reduces vibration and supports improved machining accuracy and tool life.
Dual-Contact ER Collet Chucks structure
Original sectional drawing and dimension references from the SUNSTONE 2026 catalog (P46).
Representative order codes and dimensions
| Interface | Order code | L | L1 | L2 | D | Clamping range |
|---|---|---|---|---|---|---|
| BBT30 | ER11-70 | 118.4 | 70 | 48 | 19 | 1-7 mm |
| BBT30 | ER32-100 | 148.4 | 100 | 78 | 50 | 3-20 mm |
| BBT40 | ER16-100 | 165.4 | 100 | 73 | 28 | 1-10 mm |
| BBT40 | ER32-150 | 215.4 | 150 | 123 | 50 | 3-20 mm |
| BBT50 | ER25-100 | 201.8 | 100 | 62 | 42 | 3-16 mm |
| BBT50 | ER40-150 | 251.8 | 150 | 112 | 63 | 3-26 mm |
Representative rows transcribed from the cited catalog pages. Download the catalog for the complete range and technical notes.
Dual-Contact FMB Face Mill Arbors
Dual-contact FMB arbors provide the same rigidity and vibration-control benefits for face-milling applications.
Dual-Contact FMB Face Mill Arbors structure
Original sectional drawing and dimension references from the SUNSTONE 2026 catalog (P47).
Representative order codes and dimensions
| Type | Interface | Order code | L | L1 | L2 | d | D |
|---|---|---|---|---|---|---|---|
| FMB | BBT30 | FMB22-45 | 111.4 | 45 | 23 | 22 | 48 |
| FMB | BBT30 | FMB27-60 | 128.4 | 60 | 38 | 27 | 60 |
| FMB | BBT40 | FMB22-100 | 183.4 | 100 | 73 | 22 | 48 |
| FMB | BBT40 | FMB40-60 | 150.4 | 60 | 33 | 40 | 73 |
| FMB | BBT50 | FMB32-100 | 223.8 | 100 | 62 | 32 | 78 |
| FMB | BBT50 | FMB60-75 | 201.8 | 75 | 37 | 60 | 128.75 |
Representative rows transcribed from the cited catalog pages. Download the catalog for the complete range and technical notes.
Where this system fits.
Selection depends on spindle interface, cutting process, projection length, tool diameter and required rigidity.
Heavy milling
Contact SUNSTONE with your interface, tool size and machining requirement.
High-accuracy machining
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Long-reach tools
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Vibration-sensitive work
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Send us your tooling requirement.
Share your machine interface, holder type, tool diameter and quantity. We will reply with product guidance and quotation information.
