I have a similar straight version bought from eBay. It’s probably the same tool, I have used it a few times at home and it hasn’t broken yet. It is short for leverage, but I have managed to open my hub bolts pressing with my foot. I keep it in my seat bag if I will need to fix a puncture.
Has anyone tried these 15mm Ti spanners?
And is Ti a terrible idea for a jersey-pocket, occasional-use spanner?