Brief introduction
spring steel EOC clamping nut for machine tool accessories,Selection of high quality spring steel, has a higher flexibility and service life.The clamping force, clamping range, high precision, used for boring, milling, drilling, tapping, grinding and engraving processing. ER collet all through high precision grinding, precision manufacturing line with the German DIN 6499 specifications.
Specifications
1. model No.:E0C8,EOC11,EOC16,EOC20,EOC25,EOC32,EOC40,EOC50
2. Metrial:40Cr/20CrMnTi
3. used in drilling, milling machine as machine tool accessories.
4. hardness:HRC52° 
5. Screw and 30° inclination molding processing,the threed tolerance class 4H-class
6. Accuracy:AA grade (0.005)mm
Do cryogenic treatment and aging treatment,improve the accuracy and stability of size. Surface coating processing,improve the surface hardness resistance and cleanliness,anti-rust and anti-corrosion better,accuracy stable,more smooth,feel more comfortable,more beautiful.