Balance G2.5 20000-50000RPM BT30 ER25 collet chuck

BT30-ER25-70 Collet Chuck CNC Machine Tool Holder

BT ER Collet Chuck: Mainly used for clamping of straight shank tools and tools such as drills, milling cutters and taps.

BT ER Tool Holders Spring chuck model: divided into ER8, ER11, ER16, ER20, ER25, ER32, ER40, ER50.

1. Works on all BT30 machines
2. Run out of the inside shank cone ≤0.002mm
3. Rear thread for pull stud is M12*1.5P.
4. Collet Chuck accepts all ER25 collets
5. Nickel coating surface, Anti-rust, anti-corrosion, durability better.
6. Tool Holder is Balanced to G2.5 at 20,000 rpm
7. Constructed of alloy steel hardened to 56 – 60 HRC for long, durable service life
8. AT3 or better accuracy standard taper specification for maximum contact with spindle.


Condition: Brand New
Balance Spec: G2.5 20,000 rpm
Brand: Chongde
TIR: ≤0.002mm
Taper Size: BT30
Surface: Nickel coating
Collet Size: ER25
Projection (L1): 70
Material: 20CrMnTi
Overall Length (L): 118.4
Model Number: BT30-ER25-70L
Collet Range(d2): 3/64"-5/8"

Email: lihui@shandongchongde.com
Whatsapp: +8615053793101