Er8-Er40 A/M/Um Collet Clamping Nuts for Cnc Lathe Milling Router Bit Holder

Features:
* Brand new and high quality
* Conveniently keep multiple chucks ready for use. Changing chucks on the fly can be difficult, and having a few spare chucks for different sizes can make tool changes easy.
* High precision and high concentricity extend the service life of the spindle and reduce the drill bit breakage rate.
* Material: alloy steel/quenched steel. Precision ground and hardened. Suitable for ER-type tool holders, tool bars, extension rod nut-fixed drill bits, boring tools and other tools.
* All nuts have dynamic balancing holes to prevent wear and noise.

Specification:
Type: ER collet chuck nut
Material: alloy steel
Model: ER8-A, ER8-M, ER11-A, ER11-M, ER16-A, ER16-M, ER20-A, ER20-M, ER25 UM, ER32 UM, ER40 UM (optional)
Color: as shown in the picture
Application: CNC cutting tools, woodworking machinery, engraving machines
Quantity: 1pcs

Package Included:
1 x ER collet chuck nut

Note:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight manual measurement deviation for the data.