In a message dated 12/2/03 2:55:23 PM, jeff@TSSGI.COM writes:

<< I stand corrected... >>

Keep standing.

<<Snap-On calls it a "triple square": . . .   . . . Snap-On calls it a
"double hex": >>

Don't delude yourself.  Snap-On hasn't christened one tool with two different
names, they've made compatible drivers for two DIFFERENT capscrew head
designs.  Given a beater with enough heft I'm sure the less astute can get either
driver into the socket of either capscrew . . . at least, one time.  The only
thing that these two forms share is their number of vertices.

<<Hazet calls it a "Internal Serration Screwdriver Socket":>>

No, they still call it an Innenvielzahnschraubendreher.

George