1. [ BALANCING] - than common nuts, extending nut service life and improving machine durability.
2. [STRONG CLAMPING FORCE] - Hardened and ground with Black Oxide Finish, to deformation.
3. [DURABLE MATERIAL] - Made of 42crMo material, wear- and highly - for long-lasting use.
4. [VERSATILE USE] - Suitable for ER tool handles, drill bits, boring cutters, and most tool holders.
5. [EASY REPLACEMENT] - Great replacement for broken parts, fits ER25 chuck, tool handle, and tool rod.

Spec:
The balance of the product is higher than that of the common nut.Extend the service life of the nut, improve the durability, better ensure the use of the machine, and enhance the anti-wear and anti-friction.Buy now.

Features:
1. Suitable for ER type tool handle, tool bar, extension bar nut holding drill bit, boring cutter and other tools.
2. Strong clamping force is not easy to deform. Hardened and ground.Black Oxide Finish.
3. This collet nut is a great replacement for the broken part, fit most tool holders.
4. Very wear-, high resistance, so very durable.
5. Suitable for ER25 chuck, tool handle and tool rod.

Specification:
Condition: 100%brand new
Material: 42crMo
Weight:130g
Color: black/white
Size: 4.5*4.5*2.5cm/1.77*1.77*0.98inch（approx）
1mm=0.039inch(approx)
Color:nut thread : nut diameter(mm) nut height (mm)
blackm32*1.5 4221
blackm32*1.542lengthen
whitem32*1.54221
Package list:
1*Collet Clamping

Notice:
Please Check Pictures and Specifications for Compatibility.
Due to the light and screen difference, the item's color may be slightly different from the pictures.