Machine Tool Artifacts Machines tool artifacts – Tetrahedron Technical specifications TETRA-CHECK 400 – 400mm. TETRA-CHECK 650 – 650mm. TETRA-CHECK 900 – 900mm. TETRA-CHECK 1500 – 1500mm. Go to verification systems Machines tool artifacts – Ball bars Technical specifications BAR-CHECK 500 – 500mm. BAR-CHECK 1000 – 1000mm. BAR-CHECK 1500 – 1500mm. BAR-CHECK 2000 – 2000mm. BAR-CHECK 2500 – 2500mm. BAR-CHECK 3000 – 3000mm. BAR-CHECK 4000 – 4000mm. BAR-CHECK 5000 – 5000mm. Go to verification systems Ask for a brochure: Por favor, deja este campo vacío.