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For Model 6410
To start the tool, simply pull the switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger and
then push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Reversing switch action
A
B
1
003553
For Model 6410
This tool has a reversing switch to change the rotational
direction. Move the reversing switch lever to
the
position (A side) for clockwise (forward) rotation or
the
position (B side) for counterclockwise (reverse)
rotation.
CAUTION:
• Always check the rotational direction before
operation.
• Use the reversing switch only after the tool comes
to a complete stop. It will damage the tool to
change the rotational direction before the tool
stops.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Installing or removing drill bit
For Model 6409
1
3
2
004622
To install the bit, place it in the chuck as far as it will go.
Tighten the chuck by hand. Place the chuck key in each
of the three holes and tighten clockwise. Be sure to
tighten all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise
in just one hole, then loosen the chuck by hand.
After using the chuck key, be sure to return to the
original position.
For Model 6409N/6410
2
1
3
004629
Hold the ring and turn the sleeve counterclockwise to
open the chuck jaws. Place the bit in the chuck as far as
it will go. Hold the ring firmly and turn the sleeve
clockwise to tighten the chuck.
To remove the bit, hold the ring and turn the sleeve
counterclockwise.
OPERATION
Drilling operation
Drilling in wood
When drilling in wood, the 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 center-punch 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 performance and shorten the service life of the
tool.
• There is a tremendous twisting 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
1. Sleeve
2. Tighten
3. Ring
1. Chuck
2. Tighten
3. Chuck key
1. Reversing
switch lever