Makita HR3851 Instruction Manual page 6

Side grip (auxiliary handle)
For maximum control and safer operation,
always use the side grip with this tool. The
side grip swings around to either side,
allowing easy handling of the tool in any
position. Loosen the side grip by turning
it
counterclockwise, swing it t o the desired
position and then tighten it by turning
clockwise.
The side grip can also be installed in the
position shown in the figure. Remove the
side grip from the grip base by turning the
side grip counterclockwise. Screw the side
grip on either side of the tool, whichever
is
convenient.
Installing or removing drill bit or other bits (bull point, etc)
CAUTION
:
Always be sure that the tool
is
switched off and unplugged before installing or removing
the bit.
Press in the tool retainer and turn
it
until
the red dots on the tool retainer and the
6