Milwaukee identifies 48-22-0304 as a rasping jab saw for drywall and plaster. A pointed saw can reach hidden utilities, so layout and shallow initial cuts matter.
Where it fits
It fits hand-cut openings and trimming in known-clear wallboard. Existing finished walls with uncertain services require inspection before cutting.
Purchase and use checks
De-energize nearby circuits, mark a shallow perimeter, keep the blade away from pipes and wires, and wear eye and respiratory protection.
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Primary source: Milwaukee 48-22-0104 rasping jab saw .
Lay out the opening before piercing
Use the fixture or box template and confirm that the cut will not cross framing needed for attachment. Scan and inspect for wiring, plumbing and protective plates. Shut off relevant circuits, but do not treat de-energizing as proof that the cavity is empty.
Start with a shallow controlled penetration. Keep the point and teeth within the drywall thickness until the cavity is understood; a long jab stroke can reach services behind the board. Cut just outside the waste side of the line so the finished edge can be adjusted.
Use the rasping edge sparingly
Milwaukee’s replacement 48-22-0104 integrates rasping holes for smoothing sheetrock edges. Rasp only enough to fit the part. An oversized opening weakens fastener placement and can show beyond a cover plate.
Wear eye and respiratory protection and collect gypsum dust. The saw is for drywall and plaster applications described by Milwaukee, not wood framing, metal lath or cement board. Use the material-specific cutter for those assemblies.
Brush dust from the teeth, inspect the point and store the saw where its blade cannot injure someone reaching into a tool bag.