Mitch Harris said: "I also have a Sears Craftsman racheted wrench with an offset head that fit perfectly underneath the saddle and looks like it would be perfect, but there aren't enough internal detents in the rachet mechanism to allow a fine an adjustment as the plain Park tool allows. In other words I turn the bolt and then rachet back the wrench but find that with wrench between the rails, it won't go far enough to catch another rachet tooth."
The Snap-On 9 mm / 10 mm double-ended ratcheting box wrench does have fine enough ratchet teeth to work between the rails at the back of the saddle.
Earle Young, Madison, Wisc. Offering expert wheelbuilding service for classic and modern bikes.