BOSCH GBH 3-28 DFR is the most versatile rotary hammer performance in the SDS plus category
- Compact housing enables various applications in narrow and tight spaces
- L-shaped design and Vibration Control for continuous effortless work
- High power-to-weight ratio with 800 W motor and tool weight of 3.6 kg
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.
Equipment & Application
This tool is intended for drilling and light chiselling in concrete, masonry, wood, and metal. It is compatible with various dust attachments.
Additional Information
The GBH 3-28 DFR Professional also features a keyless chuck for round shaft drill bits, a quick-change chuck (SDS plus), Reverse Mode, Rotation Control Clutch, Variable Speed, and Vario-Lock.
Technical Specifications
|
Impact rate at rated speed |
0 – 4,000 bpm |
|
Rated speed |
0 – 900 rpm |
|
Tool holder |
SDS plus |
|
Impact energy (according to EPTA 05/2016) |
3.1 J |
|
Rated input power |
800 W |
|
Packaging dimensions (width x length x height) |
357 x 475 x 125 mm |
|
Voltage, electrical |
110 V |
|
Weight |
3.6 kg |
|
Drilling dia. concrete, hammer drill bits |
4 – 28 mm |
|
Opt. appl. range concrete, hammer drill bits |
12 – 18 mm |
|
Vibration emission value ah (Hammer drilling in concrete) |
11.8 m/s² |
|
Uncertainty K (Hammer drilling in concrete) |
1.5 m/s² |
|
Vibration emission value ah (Chiselling in concrete) |
10 m/s² |
|
Uncertainty K (Chiselling in concrete) |
1.5 m/s² |
