What's the difference between setting auto brakes to MAX vs. RTO in Boeing Aircraft? On Airbus aircraft, before taxiing and before take off, pilots turn auto brakes to MAX.

But on Boeing aircraft, they will set auto brakes to RTO.

Why does Boeing not use auto brakes MAX instead of RTO?
For the 737:

RTO is used for takeoff, and puts full hydraulic system pressure to the brakes. The other autobrake settings, 1, 2, 3, and Max, are used for landing, and brake to achieve a specified deceleration rates. In autobrakes Max, you get very firm brake application, but it's still something less than unmetered system pressure to the brakes.

In all cases, the anti-skid system will prevent a wheel from locking up by reducing (modulating, actually) hydraulic pressure to a particular brake.