CRAFTSMAN Stud Finder, 3/4-Inch Depth (CMHT77633)

Product overview

Craftsman CMHT77633 Stud Finder: What to Know

The CMHT77633 is a basic edge-finding stud finder: it detects a stud edge as you slide it across the wall and lights up or beeps at that point, rather than calculating and marking a center for you the way the DeWalt DW0100 or Zircon A250c do. Craftsman's own spec sheet lists a 3/4-inch scan depth through drywall, and the tool is explicitly rated to work over wallpaper and fabric coverings, with a shock- and water-resistant housing aimed at rough jobsite handling rather than precision. It runs on one 9V battery, not included.

We found a genuine inconsistency worth flagging rather than smoothing over: some Craftsman marketing copy and secondary listings describe CMHT-series stud finders in language that implies live-wire or AC detection, but the CMHT77633's own product page and manual do not list an AC-detection feature for this specific model, and the model that actually includes AC detection and center-finding at a deeper 1.5-inch range is a different Craftsman product, the CMHT77621. This is a real case of model-number confusion between two similarly-branded Craftsman stud finders, and it's worth double-checking the exact model number on the packaging before assuming this basic model does anything it doesn't.

For its price point, the trade-off is straightforward: no metal-detection mode, no AC-wiring warning, and edge-only (not center) detection, in exchange for a genuinely low cost and a durable housing. It's a reasonable pick for occasional, low-stakes tasks like hanging a picture frame or a small shelf, but not the tool we'd reach for on a project where hitting the exact center of a stud or avoiding wiring matters.

Key Listed Features