0.56 in Voltmeter Hole-Saw Bezel
Round panel bezel that lets a 0.56 in DROK-style digital voltmeter or ammeter (45.5 x 26.5 mm panel cutout) mount in a 2-1/8 in (54 mm) hole-saw bore instead of a hand-cut rectangular slot, for dashes, RV panels and battery boxes. 66 mm flange with a 53.4 mm locating spigot (four arc tabs so the meter body clears), a 46 x 27 mm window behind a 2 mm snap lip with clip relief, and four countersunk 3.4 mm holes for #6 wood screws or M3 machine screws into the panel; prints face-down for a smooth front.
electronics voltmeter bezel panel-mount