6
Selecting the action mode (Fig. 5)
This tool employs an action mode changing ring. Select
one of the three modes suitable for your work needs by
using this ring. For rotation only, turn the ring so that the
arrow on the tool body points toward the M mark on the
ring. For rotation with hammering, turn the ring so that
the arrow points toward the Xon the ring. For rotation
with clutch, turn the ring so that the arrow points toward
the U mark on the ring.
CAUTION:
Always set the ring correctly to your desired mode mark.
If you operate the tool with the ring positioned half-way
between the mode marks, the tool may be damaged.
Adjusting the fastening torque (Fig.6)
The fastening torque can be adjusted in 16 steps by turn-
ing the adjusting ring so that its graduations are aligned
with the arrow on the tool body. The fastening torque is
minimum when the number 1 is aligned with the arrow,
and maximum when thenumber 16 is aligned with the
arrow.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to determine
which torque level is required for a particular application.
Installing or removing driver bit or drill bit (Fig.7& 8)
Important:
Always be sure that the tool is switched off and the bat-
tery cartridge is removed before installing or removing
the bit.
Turn the sleeve counterclockwise to open the chuck jaws.
Place the bit in the chuck as far as it will go. Turn the
sleeve clockwise to tighten the chuck. To remove the bit,
turn the sleeve counterclockwise.
When not using the driver bit, keep it in the bit holders.
Bits 45mm long can be kept there.
Side grip (auxiliary handle) (Fig. 9)
Always use the side grip to ensure operating safety.
Install the side grip so that the teeth on the grip fit in
between the protrusions on the tool barrel. Then tighten
the grip by turning clockwise at the desired position. It
may be swung 360° so as to be secured at any position.
Adjustable depth rod (Fig. 10)
The adjustable depth rod is used to drill holes of uniform
depth. Loosen the thumb screw, set to desired position,
then tighten the thumb screw.
Screwdriving operation (Fig. 11)
First, turn the action mode changing ring so that the
arrow on the tool body points to the U marking. Adjust
the adjusting ring to the proper torque level for your work.
Then proceed as follows.
Place the point of the driver bit in the screw head and
apply pressure to the tool. Start the tool slowly and then
increase the speed gradually. Release the trigger as
soon as the clutch cuts in.
NOTE:
• Make sure that the driver bit is inserted straight in the
screw head, or the screw and/or bit may be damaged.
• When driving wood screws, predrill pilot holes to make
driving easier and to prevent splitting of the workpiece.
See the chart below.
• If the tool is operated continuo usly until the battery car-
tridge has discharged, allow the tool to rest for 15 min-
utes before proceeding with a fresh battery.
Drilling operation
First, turn the action mode changing ring so that the
arrow on the tool body points to the Mmarking. The
adjusting ring can be aligned in any torque levels for this
operation. Then proceed as follows.
• Drilling in wood
When drilling in wood, best results are obtained with
wood drills equipped with a guide screw. The guide
screw makes drilling easier by pulling the bit into the
workpiece.
• Drilling in metal
To prevent the bit from slipping when starting a hole,
make an indentation with a centerpunch and hammer
at the point to be drilled. Place the point of the bit in the
indentation and start drilling. Use a cutting lubricant
when drilling metals. The exceptions are iron and brass
which should be drilled dry.
CAUTION:
• Pressing excessively on the tool will not speed up the
drilling. In fact, this excessive pressure will only serve
to damage the tip of your bit, decrease the tool perfor-
mance and shorten the service life of the tool.
• There is a tremendous force exerted on the tool/bit at
the time of hole breakthrough. Hold the tool firmly and
exert care when the bit begins to break through the
workpiece.
• A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back out.
However, the tool may back out abruptly if you do not
hold it firmly.
• Always secure small workpieces in a vise or similar
hold-down device.
• If the tool is operated continuo usly until the battery car-
tridge has discharged, allow the tool to rest for 15 min-
utes before proceeding with a fresh battery.
Nominal diameter of
wood screw (mm) Recommended size of
pilot hole (mm)
3.1 2.0 – 2.2
3.5 2.2 – 2.5
3.8 2.5 – 2.8
4.5 2.9 – 3.2
4.8 3.1 – 3.4
5.1 3.3 – 3.6
5.5 3.6 – 3.9
5.8 4.0 – 4.2
6.1 4.2 – 4.4