Drilling Operation; Drilling In Metal; Drilling In Wood - Makita 6404 Instruction Manual

CAUTION
:
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Before plugging in the tool, always check to see that the trigger switch actuates properly
*Always check the direction of rotation before drilling.
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Use the reversing switch lever only when the tool comes to a complete stop. Changing
When not operating the tool, keep the reversing switch lever in the neutral position.
*Pulling the trigger hard when the reversing switch lever is in the neutral position can
and returns to the "OFF" position when released.
the direction
of
rotation before the tool stops may ruin the tool.
cause switch breakage.
Drilling operation
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Drilling in wood.
When drilling holes in the wood, use
a
wood drill with
a
guide screw. The guide screw
makes it bore naturally by itself,
so
you do not need to apply any pressure to the tool.
Drilling in metal
To prevent the bit from slipping when starting
a
hole, make an indentation with a center-
punch and hammer
a t
the point to be drilled. Place the point of the bit in the indenta-
tion 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 i s a tremendous force exerted on the tool/bit
a t
the time of hole break through.
Hold the tool firmly and exert care when the bit begins to break through the workpiece.
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Always grip the small workpiece firmly with
a vise
or
a
holding means.
* A stuck bit can be removed simply by setting the reversing switch to reverse rotation
in order to back out. However, the tool will pull away easily unless you hold
it
firmly
before starting the tool.
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