Alfa Romeo oil pressure gauge sender wrench - 14mm

A tool for removing and installing the oil pressure gauge sender in 4-cyl Alfa Romeo motors from the 60's to the 90's. It is essentially a 14mm crawfoot wrench with extended reach and is meant to be used with a 3/3 ratchet extension (see pictures). The wrench portion is 5.5mm thick, and therefore thin enough to fit in the tight space between the sender body and the engine block. 
Note: The nut sizes in oil pressure senders vary. I've seen 14mm, 17mm, 18mm. For the larger sizes, a regular crawfoot wrench is sufficent. The 14mm ones are trickier as a regular 14mm crawfoot doesn't extend far enough to clear the body of the sender.