I used it to drive a resinous pseudo tree pile 100 X 500. I first carved about 200 mm using 100 mm drilling and then it was driven by this, but this octagonal squared arrow was enough. (No need for drilling) I never thought that I could use it like this. Moreover, it seems that it is quite durable and has few dents and is still available.
For goods it is of sufficient quality. However, we request the following items. The handle and head are divided and delivered, but I want some explanation about how to attach the handle (there are upward and downward directions on the mouth part of the head). (I did not understand, so I contacted the manufacturer's dragonfly industrial branch by phone.) In the end, like the size engraving (150 m / m) of the head part comes to the bottom side, the narrower one of the handle from the opposite side ) To be inserted.