And, none of the openings is 3/8, they are all too small.
"a 1/4 in., 9/32 in., 5/16 in. and 11/32 in. stem"
You see, 3/8 is also can be called 12/32, which is larger than what this one
Christopher A. Young
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Since I clean condensing units for commercial customers from time to
time, I have a darn newfangled four post long reach key that resembles
a tiny four way lug wrench. ^_^
Not pot-metal like most of them.