Compact Structure and High Torque Transmission Efficiency
The internal hexagonal bore features a regular hexagonal shape that perfectly fits the bolt head, achieving 100% contact area and less than 5% torque loss. For the same specification, it can withstand 3-5 times more torque than cross-head screws (e.g., an M6 hex socket bolt has a maximum torque of 18N·m), making it suitable for high-strength connection scenarios (such as bicycle frames and industrial equipment bases). This prevents safety hazards caused by slipping or breaking of ordinary screws.
Portable Tools for Multiple Scenarios
Hex wrenches are mostly designed in L-type or T-type, with a short side length of only 2-5cm, allowing access to narrow spaces (such as furniture back panels and automotive engine gaps). Sets typically include 2mm-19mm metric specifications, and when paired with extension rods, they can be used for deep-hole operations (such as bolts inside pipes). Their portability makes them essential tools for home toolkits and outdoor equipment (e.g., camping table and chair assembly).
Operational Details and Safety Upgrades
The long side of the L-type wrench can be fitted with a socket to increase the lever arm, improving labor-saving efficiency by 40%; the T-type wrench is equipped with a non-slip rubber handle for better grip comfort. New models have a built-in torque limiter that presets a torque value (e.g., 8N·m) and automatically slips when the threshold is reached, avoiding over-tightening and damaging parts, especially for soft materials like aluminum alloy.