ST ER High Speed Collet Chuck

High Quality ST ER Tool Holders, apply to high precision machining .High Precision ST shank tool holder can achieve G2.5 30000 RPM. ST ER chucks are special used for small CNC machining center, engraving and milling machine, plane copying milling machine with scaling instrument, and suitable for drilling, milling, engraving, high precision, widely used in precision processing.  Main models include S15T,S20T and S25T.

Features:

1. Material: 20CrMnTi or JIS-SCM415

2. Hardness: 56-60HRC;

3 Taper precision ≤AT3 and part of the standard size are tested by Diebold standard inspection tools which made in Germany;

4 Run out of the inside shank cone: ≤0.002mm；Coaxiality with collet : ≤ 0.005mm；

5 Dynamic balance： G2.5 30000rpm;

6. Suitable for drilling, milling, engraving, high precision, widely used in precision processing

Our advantages

1. Good Rigidity

2. High accuracy stability of parts processing and surface processing dimension

3. Improving cutting tool using life

4. The wear of taper shank caused by vibration is reduced during heavy cutting

5. ATC repeats the operation with high accuracy

6. The appearance with nickel coating, the products are anti-rust, anti-corrosion and durability better.

4. Clean appearance and accuracy stable

5. -196℃ long cryogenic treatment and ultra long time thermal aging processing, reducing residual stresses and increasing the hardness and toughness.