An intermittent nailer starting point
DWFP55126 is the six-gallon pancake comparison for a carpenter building a suitable pneumatic setup. DeWalt documents 2.6 SCFM at 90 PSI, so check that against the nailer and actual firing frequency. The larger tank provides stored air, but it does not change the pump into a high continuous-output source. A sanding or spraying application can have very different requirements from intermittent trim fastening.
Price the system rather than the tank
The useful purchase includes a suitable hose, couplers, regulated delivery and the nailer itself. If none of that equipment is owned, compare the complete arrangement with a cordless tool that covers the same work. A low compressor-body price alone cannot settle value. Suitable electrical supply, transport and regular draining also need a place in the routine; oil-free does not mean maintenance disappears.
Know when to buy more delivery
EC914S offers a higher documented delivery figure for a different demand profile, while MAC100Q emphasizes small light-duty transport. DWFP55130 has a smaller tank with another output and pressure combination. Compare those against the real tools firing, not a maximum-PSI contest. Apprentices should check what the crew already provides before assembling a private air station that duplicates equipment waiting at the job.