NBT Tool Holders
NBT Tool Holders
NBT30 ER, GER and GSK collet chucks from the SUNSTONE 2026 catalog for compact precision machining.
Catalog-matched product information.
ER Collet Chucks
NBT30 ER holders cover ER16 through ER32 with 60 mm and 70 mm projections and clamping ranges up to 20 mm.
ER Collet Chucks structure
Original sectional drawing and dimension references from the SUNSTONE 2026 catalog (P28).
Representative order codes and dimensions
| Interface | Order code | L | L1 | L2 | D | Clamping range |
|---|---|---|---|---|---|---|
| NBT30 | ER16-60 | 108.4 | 60 | 38 | 28 | 1-10 mm |
| NBT30 | ER20-60 | 108.4 | 60 | 38 | 34 | 1-13 mm |
| NBT30 | ER25-60 | 108.4 | 60 | 38 | 42 | 3-16 mm |
| NBT30 | ER32-60 | 108.4 | 60 | 38 | 50 | 3-20 mm |
| NBT30 | ER16-70 | 118.4 | 70 | 48 | 28 | 1-10 mm |
| NBT30 | ER32-70 | 118.4 | 70 | 48 | 50 | 3-20 mm |
Representative rows transcribed from the cited catalog pages. Download the catalog for the complete range and technical notes.
GER Collet Chucks
NBT30 GER holders use concentric fully round nut geometry for lower noise and air resistance at speed.
GER Collet Chucks structure
Original sectional drawing and dimension references from the SUNSTONE 2026 catalog (P29).
Representative order codes and dimensions
| Interface | Order code | L | L1 | L2 | D | Clamping range |
|---|---|---|---|---|---|---|
| NBT30 | GER16-70 | 118.4 | 70 | 48 | 27.5 | 1-10 mm |
| NBT30 | GER20-70 | 118.4 | 70 | 48 | 30.5 | 1-13 mm |
| NBT30 | GER25-70 | 118.4 | 70 | 48 | 35.5 | 3-16 mm |
| NBT30 | GER32-70 | 118.4 | 70 | 48 | 48.5 | 3-20 mm |
Representative rows transcribed from the cited catalog pages. Download the catalog for the complete range and technical notes.
GSK Collet Chucks
NBT30 GSK holders use the 4° single-side taper collet for repeatable clamping and a fully round nut for high-speed use.
GSK Collet Chucks structure
Original sectional drawing and dimension references from the SUNSTONE 2026 catalog (P30).
Representative order codes and dimensions
| Interface | Order code | L | L1 | L2 | D | Clamping range |
|---|---|---|---|---|---|---|
| NBT30 | GSK10-60 | 108.4 | 60 | 38 | 27.5 | 3-10 mm |
| NBT30 | GSK16-60 | 108.4 | 60 | 38 | 40.5 | 3-16 mm |
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.
Compact machining centers
Contact SUNSTONE with your interface, tool size and machining requirement.
Precision milling
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Engraving
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High-repeat clamping
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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.
