Features:
- Material: SUS440
- Material Sub-zero treated after vacuum head treatment, reliable and distortioni free.
- Manual screw design, suitable for small workpieces
- Special structure design and High precision
- Hardness: HCR 45° - 55°
- Parallelism: within 0.003 / 100 mm
- Squareness: within 0.005 / 100 mm