Black Oxide Finish, ER25UM Dynamic Balancing Nut with Strong Clamping Force, Suitable for Collet Clamping, Boring Cutter, and Tool Handle for Lathe

[Great Replacement Part] This collet nut is a replacement for broken parts, fitting most tool holders for seamless use. [Highly sturdy] Very wearproof with high proofness, ensuring longevity and reliability even in working conditions. [Strong Clamping Force] Ensures tools are securely held without deformation, with a hardened and ground black oxide finish for durability. [Suitable for Various Tools] Suitable for er type tool handle, tool bar, and extension bar nut holding drill bit, boring cutter and more. [Compatibility] Specifically designed for er25 chuck, tool handle, and tool rod, providing a versatile tool holding solution. 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 non wear and non 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 wearproof, high proofness, so very sturdy. 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.

• [Great Replacement Part] This collet nut is a replacement for broken parts, fitting most tool holders for seamless use.
• [Highly sturdy] Very wearproof with high proofness, ensuring longevity and reliability even in working conditions.
• [Strong Clamping Force] Ensures tools are securely held without deformation, with a hardened and ground black oxide finish for durability.
• [Suitable for Various Tools] Suitable for er type tool handle, tool bar, and extension bar nut holding drill bit, boring cutter and more.
• [Compatibility] Specifically designed for er25 chuck, tool handle, and tool rod, providing a versatile tool holding solution.