d42jeep said:I wonder if they were made in house or purchased from another manufacturer

Very cool set. Those are the first Xcelite Bristol drivers I’ve seen. Bristol has been around for a long time.I sort of inherited this kit several years ago.
Quite a few more tools than just nut drivers and a pretty good field service kit. The unique things in this kit are the spline drivers. I remember repairing some electronics equipment held together with these and being a bit bamboozled at how I could get it disassembled. I suppose they were trying to reduce screw head size to help with miniaturization, but that is just a guess. The one time I needed a spline driver I didn't have one though. Fortunately they didn't catch on.
I've always been disappointed at how poorly the Xcelite Phillips drivers fit screw heads. I'd thought it might be a JIS, Reed Prince or Posi-Drive issue but they don't seem to fit any Phillips head screws well. Nut drivers work good though and I use them often.



Very cool set. Those are the first Xcelite Bristol drivers I’ve seen. Bristol has been around for a long time.
https://www.garagejournal.com/forum/showpost.php?p=8522229&postcount=5
-Don
Don, I picked up a 1/4" yesterday, I'll add it to your pile.Whenever I spot Proto nutdrivers at a sale I always pick them up. Unfortunately, I’ve never run across a 1/4” or 3/16”. I wonder if they were made in house or purchased from another manufacturer?
-Don










CoogarXR, how do the dimensions of mine compare to yours?
Are the markings on yours paint in molded or stamped recesses in the plastic handle? Mine may have been slik-screened onto the smooth finish of the handle groove, and the paint just fell off.

i like them also,they are very handy.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.
-Don






I picked this set up yesterday at a garage sale
A bit cleaned up
These might take the place of my Proto set out in the garage, which might replace my Spintite set in the machinist's roller. I love wood-handled screwdrivers, but color-coded handles on nutdrivers are so handy. In any case, here are the Spintites, from 1/8" to 3/4", only missing the 11/16"
![]()
I have a similar Vaco set I've had for 50+ years but it has a handle with multiple interchangeable bits to fit. I will try to grab a pic when I get a chanceI picked this set up yesterday at a garage sale
A bit cleaned up
These might take the place of my Proto set out in the garage, which might replace my Spintite set in the machinist's roller. I love wood-handled screwdrivers, but color-coded handles on nutdrivers are so handy. In any case, here are the Spintites, from 1/8" to 3/4", only missing the 11/16"
![]()
Raineman said:and 2 Pro America at the bottom (not sure about those 2 yet, does anyone know if they are Proto made?