-15-
You will extend the life of your bits and do
neater work if y ou always pu t t he bit in
contact with the work bef ore pulling the
trigger. During the oper a tion, hold the tool
firmly and exert light, steady pressu re. Too
much pressure at low sp eed will stall the
tool. Too little pressure will keep the bit from
cutting and cause excess friction by sliding
over the surface. This can be damaging to
both tool and bit.
DRILLING WITH VARIABLE SPEED
The trigger controlled variable speed feature
will eliminate the need for center punches in
hard material s. The variable speed trigger
allows you to slowly increase RPM. By using
a slow starting speed, you are able to keep
the bit from “wand er ing”. You can i ncrease
the speed as the bit “bites” into the work by
squeezing the trigger.
DRIVING WITH VARIABLE SPEED
Variable speed drills will double as a power
screwdriver by using a screwdriver bit in the
drill mode. The technique is to start slowly,
increasing t he s peed as th e sc rew r uns
down. Set the screw snug ly by slowing to a
stop. Prio r t o d riving screws, pilot a nd
clearance holes should be drilled.
FASTENING WITH SCREWS
This procedure shown in (Fig. 12) will enable
you to fasten ma terials together with your
Cordless Drill/Screwdriver without stripping,
splitting or separating the material.
First, clamp the pieces together and drill the
first hole 2/3 the diam eter of the screw. If the
material is soft, drill only 2/3 t he proper
length. If it is hard, drill the entire length.
Second, unclamp th e pieces and drill the
second hole the same diameter as the screw
shank in the first or top piece of wood.
Third, if flat head screw is used, countersink
the hole to make the scr ew flush with the
surface. Then, simply apply even pressure
when driving the screw. The screw shank
clearance hole in the first piece allows the
screw head to pull the pieces tightly together.
The adjustable screw drill accessor y will do
all of t hese oper ations quickly and easily.
Screw drills are available for screw sizes No.
6, 8, 10 and 12.
Operating Tips
BATTERY
PACK
CHARGER
FIG. 11
INDICATOR LIGHTS
2. Drill same
diameter as
screw shank.
3. Countersink
same diameter
as screw head.
1. Drill 2/3 diameter and
2/3 of screw length for
soft materials, full
length for hard
materials.
Adjustable
Screw
Drill
Screw
Apply a slight
even pressure
when driving
screws.
FASTENING WITH
SCREWS
FIG. 12
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