JEM # HPI-BT30-ER20H-100-BBT30-ER20H-100-B
BT30 ER20 collet chuck, 3.94" gauge, dual contactBT30ER203.94" GL.019–.512"Dual contact
SpecificationsFrom Pioneer's catalog
- Taper
- BT30
- dual contact (face and taper)
- Type
- ER collet chuck
- Collet series
- ER20
- Hex nut
- Clamping range
- .019–.512"
- Gauge length
- 3.94"
- from the gauge line
- Nose Ø
- 1.33"
- Balance
- 20,000 RPM
Goes with itNamed in Pioneer's catalog
NUT ERN20HER20 collet nut · ER20 HEX NUT$47.85
Collets and other versions
Retention knob for BT30The knob depends on your machine, not the holder. Find yours by builder.Find by machine →
ER20 collets that fit213 sizes and types · showing 213
| Size | Clamps | Precision | Type | Part no. | Stock | Price | |
|---|---|---|---|---|---|---|---|
| 1/8" | .086–.125" | Standard | Collet | ER20-0125 | In stock | $24.43 | |
| 1/8" | .086–.125" | UP · 5 µm | Collet | ER20-0125UP | Ships from Pioneer | $41.62 | |
 1/8" | .086–.125" | Standard | Collet | 1120.03182 | Ships from Rego-Fix | $41.00 | |
| 1/8" | .086–.125" | UP · 5 µm | Collet | 1120.03183 | Ships from Rego-Fix | $80.00 | |
 1/8" | — | — | Sealed coolant collet | 1220.03182 | Ships from Rego-Fix | $88.00 | |
 5/32" | .117–.156" | Standard | Collet | ER20-0156 | In stock | $24.43 | |
| 5/32" | — | — | Sealed coolant collet | 1220.03972 | Ships from Rego-Fix | $88.00 | |
| 3/16" | .148–.188" | Standard | Collet | ER20-0187 | In stock | $24.43 | |
| 3/16" | .148–.188" | UP · 5 µm | Collet | ER20-0187UP | Ships from Pioneer | $41.62 | |
| 3/16" | .148–.187" | Standard | Collet | 1120.04762 | Ships from Rego-Fix | $41.00 | |
| 3/16" | .148–.187" | UP · 5 µm | Collet | 1120.04763 | Ships from Rego-Fix | $80.00 | |
| 3/16" | — | — | Sealed coolant collet | 1220.04762 | Ships from Rego-Fix | $88.00 |
Other BT30 ER20 lengths and versions10 in all
| Gauge | Standard | Dual contact |
|---|---|---|
| 50 mm | 2130.12010$198.00 | 2130.12016$400.00 |
| 2.36" | BT30-ER20H-060$125.57 | BT30-ER20-060-B$183.28 |
| 70 mm | 4130.12030$214.00 | 4130.12036$414.00 |
| 100 mm | 4130.12050$257.00 | — |
| 3.94" | BT30-ER20H-100$139.06 | BT30-ER20H-100-B$184.15this |