Products Description
High precision ER25 Nut is made of high-quality alloy steel with a heat treatment hardness of 52-55HRC, which is not easy to loosen or deform.
ER25 Nut is a crucial tool in machining and CNC operations. It is easy to use and provides secure and precise holding of tools and workpieces. With its compatibility with a range of machines and tools, ER25 Nut provides a versatile and reliable solution for various industrial applications.
It include ER25A,ER25M and ER25UM three type.also it have black and white two colour.

| Model | D/mm | L/mm | M | Weight/kg | 
| ER11A | 19 | 11.3 | M14*0.75 | 0.005 | 
| ER16A | 28 | 17.5 | M22*1.5 | 0.01 | 
| ER20A | 34 | 19 | M25*1.5 | 0.05 | 

| Model | D/mm | L/mm | M | Weight/kg | 
| ER11M | 16 | 12 | M13*0.75 | 0.005 | 
| ER16M | 22 | 18 | M19*1 | 0.01 | 
| ER20M | 28 | 19 | M24*1 | 0.05 | 

| Model | D/mm | L/mm | M | Weight/kg | 
| ER25UM | 42 | 20 | M32*1.5 | 0.14 | 
| ER32UM | 50 | 22.5 | M40*1.5 | 0.20 | 
| ER40UM | 63 | 25.5 | M50*1.5 | 0.30 | 
| ER50UM | 78 | 35.5 | M64*2 | 0.50 | 
Black series



White series



How to use
ER25 Nut is commonly used in a variety of machining and CNC applications. It is particularly useful for applications that require high precision and accuracy.
Using ER25 Nut is relatively straightforward. The first step is to ensure that the collet and nut are compatible with each other. ER25 Nut is designed to fit ER25 collets, which have a diameter range of 1mm to 16mm.
To use ER25 Nut, insert the collet into the chuck of the machine and tighten it slightly using a chuck key. Then, slide the nut onto the collet and tighten it using a wrench or spanner. It is important to ensure that the nut is tightened securely, but not too tight that it damages the collet.
Once the collet and nut are securely in place, the machine can be operated as usual. The collet will hold the tool or workpiece securely in place, allowing for precise and accurate machining operations.
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