[Sedici]

Had a hell of a time tracking this down. Not available from a Ducati dealer or even listed in the "special tools" section of the workshop manual. If you ever want to service the foot controls, (I'm replacing the bushings on the shift and brake lever pivots) you're going to need one of these Pin-spanners…
Around $25.

 

[Apollo2]

I got one from eBay buy-it-now. IIRC it cost about the same as yours.

There are ways around it. For instance, one might take a pair of punches (or tips of needle-nose pliers) and stick them in opposite holes, then use a screw-driver placed across the "uprights" to apply torque. After all, it isn't torqued to a very high value.

 

[Sedici]

In an emergency I can see using the tips of punches (or similar).
And sure, there's all kind of ways around it. I could clamp a pair of VISE-GRIP® pliers to the edges, but I won't.:blind:

I'm also having the hardware re-finished while apart. The black has worn-off and looks crap. So, I don't want to "bugger" them up..