14 | English
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ap-
plication tools or is poorly maintained, the vibration level
and noise emission value may differ. This may significantly
increase the vibration and noise emissions over the total
working period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
Assembly
u Pull the plug out of the socket before carrying out any
work on the power tool.
Auxiliary handle (see figure A)
u Do not operate your power tool without the auxiliary
handle (7).
You can adjust the auxiliary handle (7) to any of 12 positions
in order to achieve a safe work posture that minimises fa-
tigue.
Turn the lower gripping end of the auxiliary handle (7) in ro-
tational direction ➊ and push the auxiliary handle (7) for-
ward until you can swivel it into the required position. Then
pull the auxiliary handle (7) back again and turn the lower
gripping end in rotational direction ➋ to tighten it.
Setting the drilling depth (see figure A)
You can use the depth stop (9) to set the required drilling
depthX.
Turn the lower gripping end of the auxiliary handle (7) anti-
clockwise and set the depth stop (9).
Pull the depth stop(9) far enough out that the distance
between the drill bit tip and the edge of the depth stop(9)
corresponds to the required drilling depth X.
Then turn the lower gripping end of the auxiliary handle (7)
clockwise to retighten it.
The fluting on the depth stop(9) must face downwards.
Dust/chip extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
u Avoid dust accumulation at the workplace. Dust can
easily ignite.
Changing the tool
u Wear protective gloves when changing tools. The drill
chuck may heat up significantly when it is used for long
periods.
Keyed chuck (see figure B)
Open the keyed chuck (11) by turning it until the tool can be
inserted. Insert the tool.
Insert the chuck key (10) into the corresponding holes of the
keyed chuck (11) and clamp the tool evenly.
Keyless chuck (see figure C)
The drill spindle is locked when the on/off switch (5) is not
pressed. This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Open the keyless chuck (1) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
Firmly tighten the sleeve of the keyless chuck (1) by turning
it by hand in the rotational direction ➋ until it stops clicking.
This will automatically lock the drill chuck.
The lock will disengage again if you turn the sleeve in the op-
posite direction to remove the tool.
Screwdriving tools
You should always use a universal bit holder (12) when using
screwdriver bits (13). Only use screwdriver bits that fit the
screw head.
For screwdriving, make sure the "drilling/impact drilling" se-
lector switch (2) is always set to the "drilling" symbol.
Changing the drill chuck
u Pull the plug out of the socket before carrying out any
work on the power tool.
Removing the Drill Chuck (see figure D)
Remove the auxiliary handle(7).
Insert a steel pin with a diameter of 4 mm and a length of ap-
prox. 50 mm into the hole on the spindle collar to lock the
drill spindle in place. Clamp a hex key (14) in the keyless
chuck (1), leading with the short shaft.
Place the power tool on a firm surface, e.g. a work bench.
Hold the power tool in place and loosen the keyless chuck
(1) by turning the hex key (14) in the rotational direction ➊.
A tightly seated keyless chuck is loosened with a light blow
on the long shaft of the hex key (14). Remove the hex key
from the keyless chuck and completely unscrew the keyless
chuck from the power tool.
1 609 92A 8X7 | (01.06.2023) Bosch Power Tools
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