Cordless hammer as powerful as corded, now made affordable
- Bosch quality at an affordable price
- High performance: as fast as corded. Same impact energy, same drilling capacity and same speed as GBH 2-20
- Interchangeable carbon brush gives high serviceability
Product Highlights
The GBH 18V-20 Professional is the entry-level tool in Bosch’s SDS plus cordless rotary hammer category. It is optimised for reliable performance in standard applications, delivering 1.7 J of impact energy. The rotary hammer is designed for durability, features robust components, and is easy to maintain due to its replaceable carbon brushes.
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Additional data |
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Battery voltage |
18.0 V |
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Impact energy (according to EPTA 05/2016) |
1.7 J |
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Impact rate at rated speed |
0 – 4,550 bpm |
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Rated speed |
0 – 1,800 rpm |
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Drilling range |
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Drilling dia. in concrete with hammer drill bits |
4 – 20 mm |
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Recommended drilling diameter range in concrete |
6 – 10 mm |
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Max. drilling diameter in metal |
13 mm |
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Max. drilling diameter in wood |
30 mm |
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Noise/vibration information |
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Sound pressure level |
93 dB(A) |
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Sound power level |
104 dB(A) |
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Uncertainty K |
3 dB |
The A-rated noise level of the power tool is typically as follows: Sound pressure level dB(A); Sound power level dB(A). Uncertainty K= dB.
