Specs were accurate on the package - tuners fit existing holes with no drilling or reaming out.
A couple of the screw holes lined up too!
Price: $12.00 (new)
Where Obtained: local store
3 on a plate, nice oblong buttons, came with all mounting screws, nice chrome plating
I wish it had some grommet or washer to dress it up a bit, but they fit the old guitar very well, no rattles, easy install, so they are just about ideal for this upgrade.
Ping is owned by Kaman.
Tuners seem good enough for my use, which is on a travel/beater guitar.