Using this Wera Tools combination pedal wrench is a breeze. First, identify the right size quickly with the color - coded tool finder. Then, place the wrench on the screw. Thanks to its unique mouth geometry, you can position it easily in tight spaces. Turn the wrench, and with the low return angle, you can engage the screw every 15 degrees. When using the 15 - degree angled ring side, reach those hard - to - access areas smoothly. As for maintenance, keep it clean after each use. Wipe off any dirt or debris. Store it in a dry place to prevent corrosion, as the high - quality surface treatment can only do so much if it's exposed to moisture for long periods. Avoid using it on screws that are way too big or too small for its size to prevent damage to the tool.