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12 | English
Vibration total values a
(triax vector sum) and uncertainty K
h
determined according to EN 62841-2-1:
2
Drilling into metal: a
= 5.5 m/s
, K = 1.5 m/s
h
Impact drilling into concrete: a
= 14.0 m/s
h
The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
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
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Auxiliary handle (see figure A)
Do not operate your power tool without the auxiliary
u
handle (6).
You can adjust the auxiliary handle (6) 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 (6) in ro-
tational direction ➊ and push the auxiliary handle (6) for-
ward until you can swivel it into the required position. Then
pull the auxiliary handle (6) 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 (7) to set the required drilling
depth X.
Turn the lower gripping end of the auxiliary handle (6) anti-
clockwise and set the depth stop (7).
Pull the depth stop (7) far enough out that the distance
between the drill bit tip and the edge of the depth stop (7)
corresponds to the required drilling depth X.
Then turn the lower gripping end of the auxiliary handle (6)
clockwise to retighten it.
The fluting on the depth stop (7) must face downwards.
1 609 92A 6FC | (09.02.2021)
Changing the Tool
Wear protective gloves when changing tools. The drill
u
2
,
chuck may heat up significantly when it is used for long
2
2
, K = 1.5 m/s
.
periods.
Keyed chuck (see figure B)
Open the keyed chuck (1) by turning it until the tool can be
inserted. Insert the tool.
Insert the drill chuck key (9) into the corresponding holes of
the keyed chuck (1) and clamp the tool evenly.
Screwdriving tools (see figure C)
You should always use a universal bit holder (11) when using
screwdriver bits (10). 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.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings, some
wood types, minerals and metal can be harmful to one's
health. Touching or breathing-in the dust can cause allergic
reactions and/or lead to respiratory infections of the user or
bystanders.
Certain dust, such as oak or beech dust, is considered carci-
nogenic, especially in connection with wood-treatment ad-
ditives (chromate, wood preservative). Materials containing
asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the ma-
terials to be worked.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
Changing the drill chuck
If your power tool does not have a drill spindle locking
u
mechanism, you must have the drill chuck changed by an
authorised after-sales service centre for Bosch power
tools.
The drill chuck must be tightened using a tight-
ening torque of approx. 30–35 Nm.
Operation
Starting Operation
Pay attention to the mains voltage. The voltage of the
u
power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Bosch Power Tools
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