Bosch UniversalImpact 800 - 800W Hammer Drill

The Bosch UniversalImpact 800 is built around its KickBack Control function – and that defines its safety profile. This 800-watt machine handles masonry, wood, soft concrete, and metal. A built-in sensor detects kickback or tilting and cuts power instantly, making it a controlled choice for larger projects. The 800 W motor delivers enough power for drilling depths up to 14 mm in masonry and 30 mm in wood.

If the drill bit jams, the safety function shuts the machine off completely and locks the spindle to prevent injury. This is a clear advantage in unpredictable materials. The trade-off is that you must restart the drill after a blockage—it lacks a slip clutch that would allow the bit to keep spinning. Speed is controlled electronically via the pressure-sensitive trigger: set it for your material, and it holds that speed consistently under load.

Under the hood

• 800 W power – for drilling into masonry, wood, soft concrete, and metal.
• Max. 19 Nm torque – power for pushing through harder materials.
• No-load speed of 50 to 3000 rpm – variable speed with fifty adjustable settings.
• 45000 blows per minute – the hammering frequency for masonry and concrete.
• 230 V mains power – no battery, so a power socket is required.

Weighing 1.7 kilograms, this is not a lightweight tool. The auxiliary handle locks securely with a bolt for stable handling. Its Auto-Lock chuck works with a simple twist: turn left to open, insert the bit, and turn right to close. It’s quick and can be managed one-handed. The drill measures 27.3 cm long, 23.2 cm high, and 6.9 cm wide. It comes with a plastic case, a depth stop, and the auxiliary handle. There’s no dust extraction, and while a power cord is included, its length isn’t specified.

The UniversalImpact 800 drills concrete, masonry, wood, and metal. Its maximum capacities are realistic for common tasks: 14 mm in concrete and masonry, 30 mm in wood, and 12 mm in metal—sufficient for anchors, plugs, and bolts. The motor is not brushless, which may mean more maintenance over the long term. Bosch doesn’t specify the noise level, but with 800 watts and 45000 blows per minute, hearing protection is advisable. This is a tool for DIY or construction sites, not fine woodworking.

The drill uses a standard keyless chuck, not an SDS-plus system. That limits compatibility with some heavy-duty concrete bits designed for professional, continuous use.