--- In hp_agilent_equipment@..., "Mike Harmon" <mharmon@...> wrote:
I have a couple of sets of 1/4" hex bits which include Pozidriv bits, but I've been unimpressed with them for the most part. They're fine for infrequent use, but I've found that the alloy is usually pretty soft and the bits don't hold their sharp edges very long. I do a lot of work on Tek scopes and they are almost completely put together with Pozidriv screws.
In addition, the problem with some of the interchangeable-bit drivers is the size of the receptacle on the end of the driver shank which holds the bit. Some of them are nearly 1/2" in diameter. I haven't seen any of them less than 3/8" in diameter.
After getting frustrated multiple times by my inability to get into narrow spaces with the interchangeable-bit driver approach, I went searching for one-piece Pozidriv screwdrivers. Most of them are made by known companies and their quality control and materials appear to be better than the Chinese-made interchangeable-bit sets.
If money is no object, you can buy a complete set of drivers (not bits) from Snap-On for around $100! For mere mortals such as myself, I would suggest you check out K-D Tools, GearWrench, Proto and/or Blackhawk. Google for a local supplier. I found my Blackhawk #1 and #2 Pozi drivers for $7 each at an industrial supply house (Grainger) here in the St. Louis area. Several auto parts houses can get Pozi drivers, but most of them don't carry them in stock.
I believe that Pozi drivers are made in sizes from #0 to #4, but the most common sizes used on electronic gear are #1 and #2. The larger sizes are used primarily on industrial equipment and European cars.
Hope this helps ...
Mike, WB0LDJ
mharmon at att dot net
You can get Pozidriv screwdrivers from Digikey (www.digikey.com). Just search for "Pozidriv". Also, you can get Gearwrench and Wiha screwdrivers on Ebay; just avoid the Vermont American stuff.
If you have an Xcelite screwdriver set, there's some Pozidriv bits for it at good price, plus free shipping (Item# 150865657735).
McMaster-Carr (www.mcmaster.com) sells Pozidriv screwdrivers and bits as well. Again, search for "Pozidriv"
Cheers,
Dave M
