easyTorque torque screwdriver by Wiha. The easyTorque torque screwdriver has a tolerance of (+ -) 10% and a factory-set value for the tightening torque. It is reliable where a specific tightening torque is required and features an ergonomic handle. It is used in combination with Wiha torque interchangeable blades. Manufacturer: Wiha Series: 292 Catalog number: 36.