Miniature tap wrench

[Toolmaker51]

This pattern Marv replicates is used even in large tap wrenches. We know he regularly runs 00's and #2's, 8's are heavy manufacturing to him. I'm dang sure a pair transverse cap screws more secure than those driven by a threaded handle. As many add a lock nut, kind of seals the verdict.

Knurling isn't useful on many tools. I think a lot receive them from makers really not indoctrinated to their use, especially small scale. Inappropriate features usually indicate habits, not thoughtful design.
Others fail in plain ol' ergonomics. Like the immense handles of imported adjustable wrenches. Fine if you are Godzilla, lame interpretation of quality and original tools. They give them increased capacity, big deal, useless without increased leverage of a proportionately longer grip.
I occasionally work aloft. One day, at height I needed a second 24" wrench, signaling below for same. Here comes one of those monsters, retrieved by drop line. All that extra material was next to unmanageable overhead. Oh H*** No. The box over there, get mine, left side 4th drawer down. Immediately apparent, just hauling it up.
What more conclusive demonstration is there?
Quiz: Why are good wrench handles tapered, especially opposite of the business end?