This 18.5mm Pin Wrench fits Hadley hubs.

Fits these Hadley Hubs:

(1) Hadley Rear SDH 137mm x12mm Flush Mount Disc Side

(2) Hadley Rear Foes/Hadley 160mm x 12mm Flush Mount Disc Side

(3) Hadley Rear SDH 122mm x 15mm Flush Mount Disc Side & Drive Side

The Drive Side of these hubs (Except (3) ) use a Hadley 16mm Pin Wrench.

Hadley Part No. T501136