What is the difference between open-ended and closed-end plum blossom wrenches?

The main differences between open-end and closed-end plum blossom wrenches are as follows:

Structure and shape:

The opening of the open-end plum blossom wrench is not closed and has a certain opening width.

The head of a closed end plum blossom wrench is a closed circular shape.

Scope of application:

The open type plum blossom wrench is suitable for situations where the space is spacious and there are fewer restrictions on the position of bolts and nuts.

A closed end plum blossom wrench can better adapt to narrow spaces because its circular structure allows for operation in more limited spaces.

Tightening effect:

The closed end plum blossom wrench completely wraps around the bolt and nut, resulting in more uniform force during tightening and less damage to the bolt and nut.

During the tightening process, if the opening of the open-end ring wrench does not fully fit the bolt and nut, it may result in uneven force distribution.

Stability:

The closed type plum blossom wrench has higher stability during use and is less likely to slip off.

If the force or angle deviation is not applied properly during operation of the open-end plum blossom wrench, it may slip off.

Price:

Generally speaking, the manufacturing process of a closed end plum blossom wrench is relatively complex, and the price may be slightly higher than that of an open end plum blossom wrench.

For example, when disassembling nuts in a narrow space inside the engine compartment of a car, a closed end ring wrench may be easier to operate; In the dismantling of external bolts on some large equipment, the space is relatively open, and an open-ended ring wrench may be sufficient to handle it.