That pattern of driver, with the combination of a full size handle and short blade isn't available from many makers these days. Shame, it's a useful pattern!
The PB Swiss drivers in that pattern are the 140 series, but.. I don't think they make them any bigger than the driver shown, which looks to be about 8mm / 5/16! They offer the usual short blade / short handle combo (135 series) up to 13mm / 1/2, but that's not quite the same thing!
You can always get a bit driver of that style and use it with a 3/8 or 1/2 slotted bit!