Precision torque wrench, designed to work with bolts that need to be tightened with a certain force. This wrench is special - it has a split beam. You simply set the desired torque, no effort, no springs under load, no complications. The head is articulated, can easily reach hard-to-reach places and work at different angles - it's very convenient when you have to torque nuts in restricted places. The drive size is 1/2 inch.