Black & Decker SD1000 Instruction Manual page 7

Operation
Although the Cordless Screwdriver
is really very
simple to operate, a few tips on
how to use it best are presented
here for your
information.
Screw Selection
Of course different applications require
different
types and sizes of screws. There
are literally hundreds of different
sizes and shapes
of screws and they even come in
different materials, but
for
your
purposes, you can
generally limit yourself to about
two or three sizes and two types.
Round headed wood
screws have round heads that stick
up above the surface of
the wood into which they
are driven. In many cases, like
hanging applications, this
is desirable. In
other applications, protruding screw heads are
not wanted. Flat head¬
ed wood screws are
useful here. With the proper countersink and
power drill (available
from
Black
& Decker at extra cost) they can be driven flush
and then covered with
putty and painted
so as to be invisible.
Be careful
to avoid overtightening small brass screws.
The heads can easily be
twisted off and the
threads can strip. Hand-tightening
of
these
screws is recommended.
Pilot Holes
Your tool
is equipped with a
1/4"
shank
1/8"
dia. pilot
drill
bit.
Insert and
remove
this
bit
as you would any screwdriver bit. Note: Back the bit out of the
wood
before
removing it
from
the tool.
Pilot holes are holes drilled in wood that are slightly smaller than the screw which
is to be driven. (For the purpose of this discussion, we will limit ourselves to talking
about wood, although there are other materials you may encounter.) The pilot hole
has two purposes. As its name suggests, it acts as a guide for the screw to follow
and allows the screw to be driven with just the threads gripping the wood. This makes
the screw much easier to drive and prevents distortion or splitting of the wood caus¬
ed by driving the whole screw body into the wood.
Pilot holes should be drilled to a depth equal to or greater than the length of the
screw to be used. When drilling in wood with a pilot drill bit you should reverse the
bit out of the hole periodically to clear wood chips from the flutes.
Different screw sizes and materials call for different size pilot holes. A handy chart
on the back page of this manual should supply you with all the pilot hole information
you
will need for using your Screwdriver Plus.
When reinserting a wood screw into a hole that is already threaded, start the screw
by
hand to
avoid
stripping the threads in the hole. Run the
screw in
until you feel
the
threads
catch, then apply the Screwdriver Plus.
Screw
Lubricants
In
some
cases it may be to your advantage to use a lubricant to make
a screw drive
a little easier. Two
of the more common lubricants are bar soap and
liquid dishwashing
soap. Just put
a little on the screw threads for easy driving.
NOTE: Due to variables
such
as
grain irregularity and
moisture content of the wood
and the amount of charge
of the Cordless Screwdriver, some of
the larger size screws
may be difficult to fully seat,
particularly in hardwoods.
In these instances the Lock
feature (page 6) will be most
useful.