On 7/31/2014 9:11 AM, G. Ross wrote:
Michael wrote:
I can't decide which is better, the square or the star? Which is less
likely to strip?

Thanks.

One thing I found out. It is easy to get paint out of a slotted screw
to remove the screw. Next easiest is a square drive. I just had to
replace the surface boards on some outside steps. They were fixed with
square drive screws. The holes were full of paint, grit and crud. I
dug most of it out with a slim awl then inserted a spare square drive
bit and tapped it with a small hammer. Then the bit on the impact
driver slipped right in and backed them out. Not sure I could have done
this with a star drive screw, but maybe so.

For general use I vote for the star.



FWIW I have had great success with using an impact driver to remove
screws that are corroded, filled with putty and or paint. The impact
action seems to work the drive bit in with out doing much precleaning of
the head.