I think the calipers are attached with 14 mm bolts.
Metric Allen wrench.
Lug wrench, metric socket set, "C" clamp
19mm
To replace the brake pads on a Toyota Tercel a jack is needed. Some other tools that will be used are a socket wrench, screwdriver, lug wrench, and a pair of pliers.
Changing your own front brake pads can save hundreds of dollars. Tools needed for the job are a jack, the brake pads, lug wrench, socket wrench, and brake fluid.
A wrench
14 mm
21mm
What is the unit measurement for the jaw opening in metric rench and a USCS wrench
14mm
Metric combination wrenches, socket set,possibly metric Allen wrench set, jack stands and hydraulic jack. Get a Haynes manual also available at NAPA parts stores.I hope this helps.
It is a metric bolt and I believe it's a 15 millimeter.