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
1. Reversing
1switch lever
A
B
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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. | Chuck |
1 | 2 | 2. Tighten | |
|
| 3. | Chuck key |
|
| 3 |
|
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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
1. Sleeve
2. Tighten
3. Ring
1
2 
3 
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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
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
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