Description
Precision BT30 Hydraulic Expansion Holder (Dia 12 x 69 mm)
Engineered for high-precision CNC machining centers. Features an advanced hydraulic clamping chamber that provides uniform clamping pressure, outstanding vibration dampening, and superior workpiece surface finish.
- Taper Standard: BT30 (MAS 403 / JIS B 6339)
- Clamping Bore Diameter: 12 mm
- Projection Length (A-dimension): 69 mm
- Runout Precision: < 0.003 mm at 3xD
- Balancing Quality: G2.5 / 25,000 RPM
- Actuation: Simple T-handle hex wrench operation
- Application: High-speed finishing, reaming, and carbide tooling