A quick search around the perimeter of the house in Big Oil Day 1 should reveal the entrance to the basement area containing the 8 ATMs. You will need an OVE9000 Saw in order to be able to access all of them, as well as an ammo bag or two for more blades. Be careful to only tap each saw-point on the machines so as not to waste precious "ammo". If done carefully, one ammo bag should suffice. The durable blade weapon mod may not be a bad idea either if available. The achievement should pop upon opening the final ATM.
I had done this achievement before the current patch, but seeing as now Pro jobs are a thing of the past, you should be able to go in, pop this achievement, restart with another loadout profile, and complete the entirety of the heist with another gun in lieu of the saw if you should so choose.