Torsion testers (known also as torque and twist testers) measure static torque and angular displacement and torsional fatigue life of a wide variety of materials and products including wire, metal rod, tools such as drill bit tips, fasteners, automotive components, spinal implants, and metallic bone screws. They are used to simulate real life service conditions and to check product quality. We also provide torsional actuators in biaxial or combined axial and torsional test machines.