Makita DF330D User Manual

7
OPERATION
CAUTION:
• Always insert the battery cartridge all the way until
it locks in place. If not, it may accidentally fall out of
the tool, causing injury to you or someone around
you.
Hold the tool firmly with one hand on the grip and the
other hand on the bottom of the battery cartridge to
control the twisting action.
Screwdriving operation
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CAUTION:
• Adjust the adjusting ring to the proper torque level
for your work.
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 switch trigger
as soon as the clutch cuts in.
CAUTION:
• Make sure that the driver bit is inserted straight in
the screw head, or the screw and/or bit may be
damaged.
NOTE:
• When driving wood screws, predrill pilot holes to
make driving easier and to prevent splitting of the
workpiece. See the chart.
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 3.7 - 3.9
5.8 4.0 - 4.2
6.1 4.2 - 4.4
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Drilling operation
First, turn the adjusting ring so that the pointer points to
the
marking. Then proceed as follows.
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 force exerted on the tool/bit
at the time of hole break through. 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 continuously until the battery
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
Using the tool as a hand screwdriver
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Switch off the tool.
Move the lock button to the locked position A.
Turn the tool.
NOTE:
• This use is convenient for checking the
screwdriving.
• Do not use the tool for work requiring excessive
force, such as tightening bolt or removing rusted
screws.

Makita DF330D Specifications

General

Idle speed (max)	1300 RPM
Screw diameter (max)	21 mm
Maximum torque (hard applications)	24 N⋅m
Maximum torque (soft applications)	14 N⋅m
Reverse	-
Product color	Black, Navy
Power source	Battery
Battery voltage	10.8 V

Weight and Dimensions

Depth	183 mm
Width	53 mm
Height	189 mm
Weight	1000 g