. OPERATION
Chuck
...
(A)
NOTE: Grease for bit
Grease the oval indentation
on the bit with the supplied
grease at least once a month.
1. To mount the bit
1-1. Insert a bit into the mounting hole,
and turn it slightly to locate an en-
gaged position.
1-2. At the engaged position, push the
bit as far as it goes. Make sure that
the bit is fixed by pulling it.
SDS PLUS type
shank
2. To dismount the bit
2-1. Depress the chuck cover and pull
the bit.
Foward/Reverse lever
...
(E)
ReverseForward
Be sure to set the switch in the cent-
er to lock it after use.
Operate the Forward/Reverse lever
after the motor rotation is completely
stopped.
Hammering/drilling switching
lever
...
(C)
Speed/Blow Mode selection
lever
...
(D)
1. There are four modes available with
the combination of Hammering/ drill-
ing switching lever and Speed/Blow
Mode selection lever.
Select the suitable mode for appli-
cation.
2. Operate the mode change after
the motor rotation is completely
stopped.
Position of
switching
lever
Speed/Blow Mode
selection lever
Recommended
application
(
Rotation with
hammering
)
Hard blow hammer-
ing mode
This mode has hard
blow hammering which
is suitable for concrete
drilling.
Concrete drill
Soft blow hammering
mode
This mode is suitable
for concrete drilling
with smaller diameter
drill, or for drilling into
soft base material.
Small diameter
concrete drill
(
Rotation only
)
High speed drilling mode
This mode is suitable
for metal drilling with
high speed rotation.
Metal drill
Metal hole saw
Slow speed drilling mode
This mode is suitable
for wood drill with high
torque.
Wood drill
Variable speed control trigger
...
(F)
To set the center of a hole, pull the trigger
slightly to start the drill rotation slowly.
