Makita HR3000C Instruction Manual page 12

Drilling operation
Set the change lever and the shift lever to the
1
symbol.
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 it into the workpiece.
To prevent the bit from slipping when starting
a
hole, make an indentation with a center-
punch and hammer at the point to the drilled. Place the point of the bit in the indentation
and start drilling.
Use a cutting lubricant when drilling metals. The exception are iron and brass which
should be drilled dry.
Drilling in metal
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.
Dust cup 5
Blow-out bulb (optional accessory)
Use the blow-out bulb to clean out the
hole.
Bit
diameter
6 m m (1/4")
-
14.5 m m
(9/16")
Dust cup (optional accessory)
Use the dust cup to prevent dust from
falling over the tool and on yourself when
performing overhead drilling operations.
Attach the dust cup to the bit as shown in
the figure.
The size of bits which the dust cup can be
attached to is as follows.
] D u s t c u p 9 1 1 2 m m ( 1 5 / 3 2 " ) - 1 6 m m ( 5 / 8 " )
I
. Dust
CUP
12