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⚙️ Upgrade Your CNC Game with Precision & Power!
The QWORK ER20 A Collet Clamping Nuts come in a 4-pack, made from hardened 40CR steel with a black oxide finish. Designed for M25 thread size and 25mm capacity, these precision-ground hex nuts fit most ER type tool holders and accessories, delivering reliable, heavy-duty clamping for CNC milling and lathe applications.



| ASIN | B08YWJHNKT |
| Best Sellers Rank | #92,560 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #204 in Hex Nuts |
| Brand Name | QWORK |
| Capacity | 25 millimeters |
| Compatible Devices | Lathe |
| Customer Reviews | 4.0 4.0 out of 5 stars (156) |
| Handle Type | keyed |
| Included Components | M25 ER20A clamping nuts |
| Item Diameter | 25 millimeters |
| Item Weight | 248.8 g |
| Lock Type | Manual |
| Manufacturer | QWORK |
| Manufacturer Part Number | WD4766 |
| Material Type | Steel |
| Model Number | WD4766 |
| Number of Items | 4 |
| Thread Size | M 25 |
| UPC | 781380133464 |
| Unit Count | 4 Count |
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