"J. Clarke" wrote:
In article ,
says...
Gerald Miller wrote:
Michael A. Terrell wrote:
Gerald Miller wrote:
OTOH, Robertson drive fasteners are automatically held in place by the
tapered mating surfaces of the driver.
Not the ones I've seen and had to remove. Every damn one of them was
sloppy, and I burnt up a bit about every six screws because they would
wear down the corners till they just spun in the screw heads.
You must have been using a No. 1 bit in a No. 2 fastener.
No, I wasn't. I used brand new #2 Robertson bits and burnt up over a
dozen of the things at $1.59 each. They were just crap screws.
I'm curious--were you using a drill, an impact driver, or a manual
screwdriver? I used to hate Robertsons, then I got an impact driver and
found that they suddenly became much more satisfactory.
I tried impact on a few and snapped the heads off every one of them.
I used a drill with a clutch, since the damn things were five inches
long. I ran it at a slow speed, taking almost a minute to remove the
screw, if it didn't strip out, or break. In spite of what Larry said I
had the bits were fully seated, and not at an angle. I had to drive the
bit into a few of them, to get them fully seated.
--
You can't have a sense of humor, if you have no sense.