- In production since 1987.
- Low Variation. Large testing area (58mm)
- Rockwell, Vickers, Shore Hardness Test Blocks
- Calibrated in accordance with ISO 6506-3, 6506-3 and 6508-3
- KHT is a manufacture of the hardness test blocks with ISO guide 34 accreditation.
- Customers include Hyundai-KIA , Hyundai WIA, Samsung, KIMS, and Government research Organization
