There is no problem in use, but the processing of the part turning the valve of the cylinder is a pretty rough feeling.
The center of the concave part engaging with the convex part of the valve is displaced.
There may be a problem depending on individual differences in valves.
Perhaps it seems to be making a rectangular hole by pressing after opening the round hole,
I feel that it is misaligned at that time.
Welding of the part turning the valve and the part of the spanner is bent and I bow slightly.