Description

Top performance with 20% less vibration

• High drilling rate and 20% higher chiselling power than other rotary hammers in its class
• 20% less vibration than other hammers in its class for more comfortable working due to Bosch Vibration Control
• Quick change chuck for fast changes between drilling with impact in concrete and drilling without impact in wood and metal
  

  TECHNICAL DATA

  Performance data
  Impact rate at rated speed	0 – 4,000 bpm
  Rated speed	0 – 900 rpm

  Additional data
  Rated input power	800 W
  Impact energy (according to EPTA 05/2016)	3.1 J
  Weight	3.6 kg
  Tool holder	SDS plus

  Drilling range
  Drilling dia. concrete, hammer drill bits	4 – 28 mm
  Opt. appl. range concrete, hammer drill bits	12 – 18 mm
  Max. drilling diameter in metal	13 mm
  Max. drilling diameter in wood	30 mm

  Total vibration values (Hammer drilling in concrete)
  Vibration emission value ah	11.8 m/s²
  Uncertainty K	1.5 m/s²

  Total vibration values (Chiselling in concrete)
  Vibration emission value ah	10 m/s²
  Uncertainty K	1.5 m/s²

  Hammer drilling in concrete
  Vibration emission value ah	11.8 m/s²
  Uncertainty K	1.5 m/s²

  Chiselling in concrete
  Vibration emission value ah	10 m/s²
  Uncertainty K	1.5 m/s²

  The A-rated noise level of the power tool is typically as follows: Sound pressure level 91 dB(A); Sound power level 102 dB(A). Uncertainty K= 3 dB.

  

  GBH 3-28 DFR PROFESSIONAL: FURTHER INFORMATION

  Product Highlights

  The GBH 3-28 DFR Professional is the most versatile tool in Bosch’s SDS plus corded rotary hammer category. Its compact housing enables multiple applications in narrow and tight workspaces. Designed for convenience, its L-shaped design provides a balanced weight distribution, while its Vibration Control allows effortless continuous work. It also features a high power-to-weight ratio, with an 800 W motor and a tool weight of only 3.6 kg.