Ideal for replacing plugs in horizontal opposite engines
In narrow spaces, use the 0.7 inch (17 mm) ratchet glasses on the outer hexagonal part to loosen the frame, and remove the links when the gap becomes narrow. (Reverse step when tightening)
Suitable for 86/BRZ

From the Manufacturer

Usage examples

In addition to a square recess at the rear end, the ratchet glasses wrench is equipped with a 0.7 inch (17 mm) wide double side hex for even lower head work.

(more)