727 Question

Hello i am asking this because my rebuild book didnt go into it too well.

when setting the bands torque the adjuster nut is an odd size square deal is that supposed to be a special tool?

if people have used other things to set that tension can you let me know? i was considering using a "crows foot" wrench so that i could use my torque wrench however i wasnt qable to find a crows foot that small today