Part of Bosch Professional’s 18V cordless range, the GBH 18V-21 is an SDS Plus hammer drill aimed at serious DIY and trade jobs where a combi drill starts to struggle in masonry. It goes up against compact SDS models from Makita and DeWalt, focusing on runtime and low maintenance thanks to its brushless motor, which helps keep heat and wear down when you are drilling repeatedly.
Who is this for?
If you regularly drill into brick, block or concrete, SDS Plus makes the difference, the bit locks in and the hammer mechanism does the heavy work. The 3-mode selector is useful in real jobs: hammer drilling for fixing holes, drilling only for wood or metal (with the right chuck adaptor), and chiselling for chasing out small channels or lifting tiles. With a 4.0Ah battery included, it is set up for longer sessions before you need to swap packs.
- Brushless motor: better efficiency for longer runtime per charge and less servicing.
- 3 modes: hammer drill, drill, chisel for broader site use.
- 1 x 4.0Ah battery: fewer interruptions on bigger tasks.