In Strategic Operations, repairs and maintenance are based on the Technician skill of your tech teams.
In A Time of War, there are expensive advanced tool kits that provide bonuses to the various technician skills, two of which can be used at the same time.
Assuming that you're playing "Accountech" and you spend the money to equip all of your tech teams with full tools appropriate to their unit:
Deluxe Toolkit, +1 all Technician skills
Cutting/Joining Kit, +1 Technician/Mechanics
Electronic Repair Kit, +1 Technician/Electronics
Fission/Fusion Repair Kit, +1 Technician/Nuclear
Myomer/Actuator Repair Kit, +1 Technician/Myomer
Vehicle Repair Kit, +1 Technician/Mechanics
Aerospace Repair Kit, +1 Technician/Aeronautics and Technician/Jets
Weapon Repair Kit, +1 Technician/Weapons
Would you allow the resulting bonus to be applied to all rolls, or would you consider this part of gaining the "Maintenance Facility" bonus, since "any tool needed" is part of the description of that modifier?