ER coolant collets are specialized collets designed with internal coolant channels, allowing coolant or cutting fluid to be delivered directly to the cutting tool's cutting edge.
| Basic Size in mm | ERNC16 | ERNC20 | ERNC25 | ERNC32 | ERNC40 |
|---|---|---|---|---|---|
| 1.0 | 1.0mm | 1.0mm | 1.0mm | - | - |
| 2.0 | 2.0mm | 2.0mm | 2.0mm | 2.0mm | - |
| 3.0 | 3.0mm | 3.0mm | 3.0mm | 3.0mm | - |
| 4.0 | 4.0mm | 4.0mm | 4.0mm | 4.0mm | 4.0mm |
| 5.0 | 5.0mm | 5.0mm | 5.0mm | 5.0mm | 5.0mm |
| 6.0 | 6.0mm | 6.0mm | 6.0mm | 6.0mm | 6.0mm |
| 7.0 | 7.0mm | 7.0mm | 7.0mm | 7.0mm | 7.0mm |
| 8.0 | 8.0mm | 8.0mm | 8.0mm | 8.0mm | 8.0mm |
| 9.0 | 9.0mm | 9.0mm | 9.0mm | 9.0mm | 9.0mm |
| 10.0 | 10.0mm | 10.0mm | 10.0mm | 10.0mm | 10.0mm |
| 11.0 | - | 11.0mm | 11.0mm | 11.0mm | 11.0mm |
| 12.0 | - | 12.0mm | 12.0mm | 12.0mm | 12.0mm |
| 13.0 | - | 13.0mm | 13.0mm | 13.0mm | 13.0mm |
| 14.0 | - | - | 14.0mm | 14.0mm | 14.0mm |
| 15.0 | - | - | 15.0mm | 15.0mm | 15.0mm |
| 16.0 | - | - | 16.0mm | 16.0mm | 16.0mm |
| 17.0 | - | - | - | 17.0mm | 17.0mm |
| 18.0 | - | - | - | 18.0mm | 18.0mm |
| 19.0 | - | - | - | 19.0mm | 19.0mm |
| 20.0 | - | - | - | 20.0mm | 20.0mm |
| 21.0 | - | - | - | - | 21.0mm |
| 22.0 | - | - | - | - | 22.0mm |
| 23.0 | - | - | - | - | 23.0mm |
| 24.0 | - | - | - | - | 24.0mm |
| 25.0 | - | - | - | - | 25.0mm |
| 26.0 | - | - | - | - | 26.0mm |