BOSCH GBH 4-32 DFR Professional Rotary Hammer

The BOSCH GBH 4-32 DFR Professional Rotary Hammer is a 900 W corded rotary hammer for demanding drilling and chiselling in concrete, masonry and brickwork. It runs from an AC supply and is also rated for drilling wood and steel. The maximum drilling diameter is 32 mm in wood, 13 mm in steel and 32 mm in concrete. Core-cutting capacity reaches 90 mm in concrete, and the maximum brickwork drilling diameter is also 90 mm. The rotary hammer additionally supports related screwdriving applications.

At 4.7 kg, the rotary hammer is built around a metal gearbox and includes an auxiliary handle for two-handed control. Its SDS-plus holder uses a quick-change chuck system, with a listed chuck range of 1–13 mm. Variable-speed control allows the operating speed to be adjusted for the material and accessory in use. Forward and reverse operation is provided for drilling and related screwdriving tasks. Vibration Control technology is integrated into the design. A depth gauge and carrying case are included for setting repeatable hole depths and storing the drill.

• 4.2 J maximum impact energy for hammer drilling and chiselling.
• 3,600 impacts per minute maximum impact rate.
• 800 RPM maximum rated speed.
• Overload clutch is integrated into the drivetrain.
• Dust-extraction port supports connection to a compatible extraction setup.