What is the part # for the tool bag that comes with the complete version of this saw
Yes, all of the Atomic tools are brushless.
No , charger .
is this a pair? steamboat
Yes. Charging time will depend on the charge rate of the charger and the capacity of the battery. For instance your charger will take approximately 3.0 amps hours/1.3 amps or 2.3 hours to charge a 3.0 amp battery. For faster charges you can use a quick charger.
No. A dust bag is not included.
Personally I would not use any other charger.
The data on these tools show that one is lightly heavier than the other and one oscillates at 18,000 and one oscillates at 20,000. Look at the specs on this page.
Yes using an adapter from Dewalt. I bought one and it does an excellent job.