🔧 Upgrade your CNC game with precision clamping power!
The QWORK ER20 A Collet Clamping Nuts come in a 4-pack, crafted from hardened 40CR alloy steel with a black oxide finish. Featuring M25 ISO metric threads and an external hex drive, these precision-ground nuts are designed for industrial-grade CNC milling and lathe tool holders, ensuring reliable, versatile, and durable clamping performance.
| Material | Alloy Steel |
| Fastener Type | Hex |
| Thread Size | M 25 |
| Exterior Finish | Black |
| Color | 4 Pack |
| Metal Type | Alloy Steel |
| Finish Type | Powder Coated |
| Drive System | External Hex |
| Brand | QWORK |
| Item Weight | 0.27 Kilograms |
| Thread Type | Iso Metric |
| Inside Thread Size | M25 |
| Grade Rating | industrial |
| Thread Style | M25, Right Hand |
| Thread Class | Fine |
| Size | ER20-A |
| Item Diameter | 25 Millimeters |
| UPC | 781380133464 |
| Manufacturer | QWORK |
| Part Number | WD4766 |
| Item Weight | 9.6 ounces |
| Item model number | WD4766 |
| Finish | Powder Coated |
| Shape | Hexagonal |
| Item Package Quantity | 1 |
| Cutting Diameter | 25 Millimeters |
| Included Components | M25 ER20A clamping nuts |
| Batteries Included? | No |
| Batteries Required? | No |
G**.
Good product
Good products. Works as expected. Bought 4 of them.
P**P
Fits perfect and works great
Perfect fit, appears to be quality material that will allow me to quickly and easily swap different collets on the spindle.
A**R
Very good set of Collet
Very good set of Collet Nuts and at a great price. They worked very well on my ER-20 Spindle. Having multiple collect nuts is a great time saver for any project that requires bit changes.
K**C
Handy to have
I got tired of swapping collets out of my one spindle nut so I bought these. Now I just leave each size collet in it's own spindle nut. Definitely speeds up tool changes.I did see other reviews complaining about the inside machining was off center. Mine too was off center and for half a minute thought I'd have to return them. But then I inserted a collet and instantly realized the purpose. That off-set hole allows for much easier removal of the collet from the spindle nut. Checked the tool bit with a dial gauge in the spindle and it was right on.My only one complaint is the hex nut shape is a little smaller than the original and my wrenches slip off sometimes but all I need to do is slow down and it's fine.
S**R
Nice Collet Nuts
Revised my review. The collets nuts work fine, my issue was resolved by pushing the collet into the collet nut first, then inserting the CNC bit I wanted to use before installing in the machine spindle. If you try to insert the collet with a bit installed it will not be able to snap into the ride in the collet.After having trouble with these I purchased a $25 Amana collet which looks to be a Chinese collet with a Amana label slapped on the package. Quality looks to be the same as these.
S**G
Good quality at a fair price
Great quality, the threads are perfect match, nice finish. A great bargain.
J**R
Garbage
As others have mentioned, mine had the inside milled off-center from the outside. Also did not see any balancing marks which was suspect.
F**C
Great Product, fits and works perfect
Great Product, fits and works perfect at a competitive price.
Trustpilot
1 month ago
2 days ago
