Park Tool Three Way Internal Nipple Wrench

Engineered for precision and convenience, the Park Tool SW‑15 is a 3‑in‑1 internal nipple wrench featuring 3.2 mm square, 5 mm, and 5.5 mm hex sockets. Its low‑profile head easily fits into tight aero rims (up to ~80 mm deep), while the ergonomic molded handle offers comfort and leverage. Compatible with a wide range of wheel brands—including FSA, HED, Bontrager, Campagnolo, Mavic, Rolf, Planet‑X, and more—it’s a durable, must-have tool for efficient wheel maintenance.

Socket sizes: 3.2 mm square (6 mm outer), 5 mm hex (7.5 mm), 5.5 mm hex (8 mm)

Low-profile head: Access internal nipples on rims up to ~80 mm deep 

Handle: Ergonomic molded plastic grip for torque and comfort :contentReference

Compatibility: Works with FSA, HED, Mavic, Bontrager, Campagnolo, Rolf, Planet-X, Blackwell, others