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Technical data
Impact Drill GSB 20-2 GSB 20-2 RE
Type nº 0 601 184 1.. 0 601 194 5..
Power [w] 701 701
Amperage 127 V [A] 5,8 5,8
220 V [A] 3,3 3,3
No-Load speed [min
-1
] 1000/3000 0...1000/0...3000
Impacts [min
-1
] 48000 0...48000
Drill Chuck Concrete [mm] 20/13 20/13
Clamping range Steel [mm] 13/08 13/08
13mm (1/2”) Aluminum [mm] 15/10 15/10
Wood [mm] 40/25 40/25
Weight approx. [kg] 2,2 2,2
Safety Class / II / II
Operating controls
1. Chuck 13 mm
2. Spindle
3. Spindle's collar - 43 mm Ø
4. Commutator drilling with/without impact
5. Ventilation slots
6. Lock on button
7. Switch
8. Reversing lever (GSB 20-2 RE)
9. Speed commutador
10. Side handle
11. Depth stop rod
12. Chuck key
* Not all of the accessories illustrated or described are
included as standard delivery.
Intended use
Bosch Hammer Drills GSB 20-2 and GSB 20-2 RE have
been developed to execute the more different drilling types
in: steel, aluminum, wood, concrete and others.
By using other accessories, you will be able to do small jobs
of: sanding, polishing, grinding, brushing, etc.
For you safety
Working safely with this machine is possible only
when the operating and safety information are
read completely and the instructions contained
therein are strictly followed. In addition, the general
safety instructions on page 11 must be followed. Before
using for the first time, ask for a practical
demonstration.
If the mains cable is damaged or cut through while
working, do not touch the cable but immediately pull
the mains plug. Never use the machine with a
damaged cable.
Wear ear protection.
Wear safety goggles.
For long hair, wear hair protection.
Hold tools by insulated gripping surfaces when
performing an operation where the drilling tool may
contact hidden wiring or its own cord. Contact with a
“live” wire will make exposed metal parts of the tool
“live” and shock the operator.
• Insert the mains plug only when the machine is switched off.
• Always direct the cable to the rear away from the machine.
• Don't use your tool in damp locations.
• Don't use your tool in the presence of flammable fluids or
gases. Danger of explosion!
• When drilling use the auxiliary handles 10.
• Do not work materials containing asbestos. Asbestos is
considered carcinogenic.
• Take protective measures when dust can develop during
working that is harmful to one's health, combustible or
explosive. Example: Some dusts are regarded as
carcinogenic. Wear a dust mask and work with
dust/chip extraction when connectable.
• If the drilling tool jams it will cause the tool to jolt. If this
occurs switch the tool off immediately.
• When working with the machine, always hold it firmly with
both hands and provide for a secure stance.
• Be careful when screwing in long screws; danger of sliding
off. (GSB 20-2 RE)
• For screws, work using the first gear or with a low speed.
(GSB 20-2 RE)
• Place the machine on the screw/nut only when switched
off. (GSB 20-2 RE)
• Always switch off the machine and allow to come to a stop
before placing it down.
• Never allow children to use the machine.
• Don't use damaged accessories such as stiff bits, worn out
sanding paper, split grinding wheels, etc.
• Do not place such loads on the machine that it ceases to
turn. Damage the motor.
Bosch is only able to ensure perfect functioning of the
machine if the original accessories intended for it are
used.
Side handle
• When drilling use the auxiliary handle 10.
To improve the handling and the safety, always use side
handle.
DEPTH STOP ROD 11.
For serial drills of same depth you have to put the depth stop
11 in the auxiliary handle 10 and to adjust the depth
according to your necessity.
Accessories assembly
Caution! The chuck may be very hot: During longer
working periods, especially when impact drilling, the chuck
can become very hot. In this case we recommend wearing
protective gloves.
• Open the chuck 1 and insert the accessory's shank until it
reaches the bottom of the chuck. Use chuck key 12 to
tighten it up through the three holes of the chuck.
Attention! An accessory shank that has only the tip
fastened: damage the chuck’s and accessory’s and by cause
an accident.
SCREWDRIVER TOOLS (accessories optional - fig. B)
When using screwdriver bits 13, a bit holder 14 should
always be used.
Use only the screwdriver bits that fit the screw head.
For driving screws, position the selector switch 4 to the
symbol “Drilling and Driving”.
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