Where 2505-20 M12 FUEL Installation Drill/Driver fits in the kit
The four-head installation format is the reason to shortlist 2505-20. It offers different ways to present the bit to the work, which is relevant when cabinetry, a device recess or an adjacent surface limits a conventional drill body. We have not measured access clearances or tested the attachment retention; treat this recommendation as a fit assessment from the documented configuration.
The decision that matters
It is best considered part of a service kit, alongside hand drivers and the appropriate test equipment. A small power tool can help with suitable mounting and assembly tasks, but the permitted fastening procedure still governs. Electrical terminals that require controlled torque need the specified torque tool. The installation driver is not a substitute for that instrument or for a heavier tool selected for large holes.
Alternatives and purchase checks
Compare 3404-20 when you want a conventional M12 hammer-drill format, and the M18, DeWalt or Makita choices when the drilling requirement points toward their platforms. Battery ownership can be a sensible tie-breaker once capacity is established. Verify the listing suffix: 2505-20 is a bare-tool configuration, and a similarly named kit can have a different battery, charger and carrying-case package.
What the four attachments add—and what they do not
Milwaukee lists a three-eighth-inch chuck, offset driver, quarter-inch hex attachment and right-angle attachment for this configuration. That is the concrete access feature to compare with a conventional drill. The manufacturer’s maximum 300 in-lb figure does not describe every accessory capacity or prove the tool is suitable for larger rough-in holes. Read those limits separately. A user who rarely needs the attachment formats may get more practical use from a conventional drill on an existing battery platform. We have not tested attachment clearance or output under load, and the included heads do not turn the tool into a calibrated terminal-torque instrument.