ER Collet Chuck Spring Collet for CNC Milling Lathe Tool Holder Milling Chuck High Precision 0.008mm ER11 ER16 ER20 ER25 ER32 AA

Specification：

Product name: ER Collet

Precision (0.008): AA0.015mm/AAA0.008mm

Material: Spring Steel 65Mn

Clamp Range: According to the model

Applicable to the Nut: ER8 ER11 ER16 ER20 ER25 ER32 ER40

Nut applicable wrench: ER8 ER11 ER16 ER20 ER25 ER32 ER40

Used for：CNC milling tool Engraving machine spindle motor，holding drills, boring tools, chisel, reamers and other tools.

Features：

1. Use the high carbon bearing steel , heat treatedrigidity is HRC48-50"

2. The surfaco roughness is below RZ2.5, has two classes' products.

3. The inner bore processing by high precision grindingaccording to DIN standard. 

4. Use for clamping screw tap, drill , milling cutter, reamer and so on.

5. Having tension and compression function, brilliant and changeable.