This tool is a specific type of six-point fastener turning implement. The first number designates the size of the fastener it is designed to engage. The second number indicates compatibility with a specific ratchet or torque wrench size. This combination allows for the application of sufficient torque to loosen or tighten fasteners of a particular size.
The precise fit offered by this tool helps prevent slippage and damage to the fastener or the tool itself. Proper use ensures efficient operation and reduces the risk of rounding off fastener heads. Standardization of these sizes has been instrumental in facilitating mechanical work across diverse industries for decades.
