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BOSCH GSB 18V-21 cordless hammer drill in L-BOXX 136 (without battery and charger) - 06019H1108

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Bosch Professional PRO DEALS + Klium BONUS DEALS - Double gifts, exclusive at Klium

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How does it work?

Buy participating Bosch Professional 18V (garden) tools, batteries or chargers at Klium. Combine multiple purchases on one invoice to reach the correct spending threshold.

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  • From €199 excl. VAT: FREE PRO Impact 35-piece screwdriver bit and Multi Construction drill bit set (2608521U82)
  • From €349 excl. VAT: FREE Bosch VDE 7-piece set (1600A02NG3)
  • From €500 excl. VAT: FREE Blower GBL18V-120 (06019F5100)

BOSCH PRO DEALS - Then register your purchase via Bosch PRO Deals and also choose your official Bosch gift via Bosch:

  • From €199 excl. VAT: FREE GBA 18V 4.0Ah battery, GLI 18V-300 worklight or L-BOXX 102
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Promotion period: 01.05.2026 through 31.05.2026. Terms & Conditions apply.

Exclusive promotion at Klium. Enjoy an instant extra gift plus additional rewards via Bosch.

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Scope of delivery

  • L-BOXX 136 (1 600 A01 2G0)

Product description

Reliable cordless impact drill in the 18V class - with impact drilling function

  • Affordable: Bosch quality at an affordable price!
  • Highly serviceable: Motor has interchangeable carbon brushes for easy maintenance and serviceability!
  • Durable: Designed with robust housing and battery cell protection!

Product highlights

The GSB 18V-21 Professional is the reliable cordless impact drill with knock-down function as an entry-level model in Bosch's 18V class. With a hard torque of 55 Nm, it delivers the performance needed for fundamental drilling and impact drilling applications. The solid metal gear housing and Electronic Cell Protection ensure professional quality in everyday use and make the screwdriver reliable and durable. Moreover, a professional design with a 13 mm quick-clamping drill chuck supports high-quality work. This machine is intended for drilling in wood with a maximum diameter of 35 mm, in steel up to 13 mm and for screw diameters up to 10 mm. The tapping drill function also enables work in masonry up to max. 10 mm. It is compatible with all Bosch Professional 18V batteries and chargers (Professional 18V System).

Equipment and application

The GSB 18V-21 Professional also features 2 gears, Autolock, LED light, Li-Ion and left/right rotation function.

Key features according to our expert
  • Battery voltage: 18 V
  • Max. drilling diameter (wood): 35 mm
  • Number of batteries included: 0
  • Weight: 2 kg
  • Type of system case: L-BOXX
  • Supplied in: System case
  • Max. drilling diameter (steel): 13 mm
  • UN number: Not applicable
  • Max. drilling diameter (masonry): 10 mm
  • Max. tightening torque: 55 Nm
  • Max. clamping capacity: 13 mm
  • Min. clamping capacity: 1,5 mm
  • Number of torque settings: 20+1
  • Product Range: Bosch 18V
Specifications / All features
Battery voltage
18 V
Max. drilling diameter (wood)
35 mm
Number of batteries included
0
Weight
2 kg
Type of system case
L-BOXX
Supplied in
System case
Max. drilling diameter (steel)
13 mm
Un number
Not applicable
Max. drilling diameter (masonry)
10 mm
Max. tightening torque
55 Nm
Max. clamping capacity
13 mm
Min. clamping capacity
1,5 mm
Number of torque settings
20+1
Vibration emission value ah (screws)
1.5 m/s²
Uncertainty k
5 dB
Torque (soft/hard/max.)
21 / 55 / - Nm
Uncertainty k (hammer drilling in masonry)
6.7 m/s²
Drill chuck clamping range, min./max.
1.5 / 13 mm
Torque positions
20+2
Number of strokes, max.
27000 min-1
Drill diameter wood, max.
35 mm
No-load speed (1st gear/2nd gear)
0 - 480 / 0 - 1800 min-1
Screw diameter, max
10 mm
Drill diameter masonry, max.
10 mm
Uncertainty k (drilling in metal)
3.3 m/s²
Vibration emission value (hammer drills in masonry)
1.5 m/s²
Battery type
Li-Ion
Uncertainty k (screws)
1 m/s²
Sound power level
99 dB(A)
Vibration emission value ah (drilling in metal)
1.5 m/s²
Drill diameter steel, max.
10 mm
Sound pressure level
88 dB(A)
Product range
Bosch 18V
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