

Well that's silly, they could have marked the sizes on it. You also proved my theory so thanks.Stinkdrivers yes but metric no. The PS-120 set contains fractional nutdrivers.
They kinda did- the numbers on the handles are how many 32nd of an inch they are. "P5" is 5/32, "P8" is 8/32 or 1/4, etc.Well that's silly, they could have marked the sizes on it. You also proved my theory so thanks.
We can talk augers and gimlets next to confuse the hiding in plain sight sizes.They kinda did- the numbers on the handles are how many 32nd of an inch they are. "P5" is 5/32, "P8" is 8/32 or 1/4, etc.



Based on the hole in the box, I was guessing a Yankee ratcheting offset screwdriver but w a hex hole.I wonder what that ratchet would look like?

One of my collecting quirks is an unnatural fascination with nut drivers. My tool collecting buddies are aware of the problem because I've sent some of them nut drivers as unsolicited gifts in the past. So when I saw this set at a nearby tool sale by a retired electrician, I just had to have them. I imagine there are some other nut drivers out there so please feel free to post them here. I'll be adding some pictures of other brands and sets as time permits.
There were at least three other case styles too- the set like above but with a clear bottom, and also the frosted soft case (I realize it's a PS-83 in the picture, but it was also used on the PS-120):


Nice. That 19/32 is pretty uncommon.