I lubricated the detent balls on the shaft, and they work well. It is just over 7.5" long overall with a just under 3.75" long shank and a 4" long handle. It has no owner's engravings.

Brand: Snap-on
Type: Standard Screwdriver
Color: Black
Manufacturer Part Number: SSDD42
Set or Single Item: Single Item
Country/Region of Manufacture: United States