Christian McArdle wrote:
Most doesn't use the torque control leaving it on full using their
fingers
to pulse.
I use the torque control when doing large numbers of easy screws,
such as
screwing down a floor, or screwing plasterboard. Otherwise, it is
easier to
just pulse, as you say.
I find the mains drill is good for driving overlarge screws into
undersized
pilot holes, but has some serious disadvantages. The main one is that
with
neither a rotor brake nor torque control, and with a large amount of
spinning mass, when the screw bottoms out, the drill really wants to
continue spinning, particularly if the drill was used overfast. This
often
overtorques the screw, burying it into the wood/plasterboard, or
chews up
the screw head.
Hmm, not sure I ever spin the drill so fast that it continues spinning
the screw into the subject !
I use 2 drills, cheapo hammer (with quick release chuck) for drilling,
but I always use my SDS drill for driving screws with an sds to hex bit
adaptor. It's a bit heavy, but the trigger control is much more
sensitive, letting you back off as the head nears full tightness. I've
rarely overtightened or chewed the head on anything, even on drywall.
Cheers,
Paul.
|