Klein Tools 10-Fold Screwdriver
This handy pocket tool has just about everything you’d need to take apart and reassemble a furnace, air conditioner, and many other things. It comes with 5/16″ and 1/4″ nut drivers, #1 and #2 Phillips, 1/4″ & 3/16″ flat, #1 and #2 square-recess drivers, and a Schrader valve core tool. Its arms lock into place for a confident grip.
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