Drive Chucks: Drive chucks
from Georgia Underground feature one-piece construction! All drive
chucks
are machined from a single block of heat-treated 4140 alloy.
Saver Subs: Saver Subs protect both your boring rod investment
and the drive chuck itself. When worn, simply unscrew the saver sub
from the drive chuck and replace with a new sub. Always use Bakerlok
thread locking compound between the drive chuck and the saver sub
to prevent back-off.