What tool is used in conjunction with a hand wrench to install a Hi-Lok collar?

The Hi-Lok collar is a type of fastener that requires precise installation for proper torque and security. When using a hand wrench, the tool typically associated with the installation of a Hi-Lok collar is an Allen wrench. This indicates that the fastener has a hexagonal recess that allows the Allen wrench to engage securely, providing the necessary leverage for driving the fastener in place.

An Allen wrench, also known as a hex key, is specifically designed to fit into the hex socket of such fasteners, ensuring a firm grip and allowing for effective torque application. This is important because using the correct tool ensures that the fastener is tightened adequately without stripping the head.

While a torque wrench is important for measuring the applied torque, it typically does not assist in the physical installation of the collar itself, so it is more of an auxiliary tool. The other options do not provide the correct engagement needed for the specific fastening task at hand. Therefore, the use of an Allen wrench is essential in conjunction with a hand wrench for the successful installation of a Hi-Lok collar.