Bosch Professional GBH 2-21 SDS Plus Hammer Drill (230 V) with 3x drill bits & carrying case

The essentials

If you’re looking at a SDS Plus hammer drill for everyday trade-style jobs, the Bosch Professional GBH 2-21 is one of those models that makes sense on paper: a compact rotary hammer aimed at hammer drilling in concrete, plus a three-mode setup for drilling and chiselling.

It’s not trying to be a monster breaker for heavy demolition. Instead, it leans into what most people actually need from a “proper” hammer drill—reliable impact performance, manageable size, and a practical scope of supply that gets you moving without immediately hunting for accessories.

The 720 W motor and 2.0 J of impact energy are the headline figures in the base description, with hammer drilling noted for concrete up to 22 mm diameter (as stated). Combined with SDS Plus tooling, it’s designed for speed and ease when fitting anchors, fixing brackets, and dealing with typical building materials.

Where it shines in real use

This type of tool is usually bought for repetitive, practical tasks: drilling holes into concrete, setting fixings, and occasionally doing small-scale chiselling around old mounts. In that context, the GBH 2-21’s compact “within reach” approach is easy to understand—less wrestling, more control, particularly when you’re working at awkward angles or for longer stretches.

One concrete example: imagine you’re fitting a wall-mounted rail or electrical back boxes. You mark your points, set the depth using the depth stop, and use the included SDS Plus drill bits (6 mm, 8 mm, 10 mm). The auxiliary handle is there for a steadier grip, which matters when the drill starts to bite in harder surfaces. The carrying case also suggests Bosch expects this to be transported between jobs rather than just living in a garage.

Versatility also matters. The description says it’s a three-mode rotary hammer: hammer drilling, drilling, and chiselling. So if your day isn’t only about holes—say you need to clean up a recess or remove a stubborn fixing—this tool is built to cover that range.

Key specs to consider before buying

The GBH 2-21 is positioned as a professional Bosch hammer drill at a level that’s “within reach”, which usually translates to: capable enough for regular jobs, but not necessarily the top-tier choice if you’re constantly doing the most demanding concrete work.

From the information provided: - It’s a 230 V hammer drill with an SDS Plus system. - Motor power is listed as 720 W. - Impact energy is listed as 2.0 J. - Concrete hammer drilling is described up to 22-mm diameter. - Included modes are hammer drilling, drilling, and chiselling.

It also includes an auxiliary handle, depth gauge (depth stop), a machine cloth, and a carrying case, plus three SDS Plus drill bits sized 6 mm, 8 mm, and 10 mm.

What you’ll notice day to day

You’ll likely appreciate the balance between power and footprint more than anything. The base description repeatedly frames it as compact but capable, and in SDS Plus terms, that usually means it’s easier to handle when you’re drilling overhead, working near edges, or moving around a site.

The included bits are a practical touch. Many kits leave you with one size only, so you end up buying the rest anyway. Here you get three common diameters, which covers a lot of typical fixings and anchor sizes.

Still, there’s a limitation worth keeping in mind: if your projects regularly involve heavy-duty breaking or long, continuous drilling in dense reinforced concrete, this is unlikely to be the most aggressive tool in a range. Based on the “compact” and 2.0 J figures, it reads more like a workhorse for frequent installations and repairs than a demolition specialist.

It might not suit you if you expect max power and long-term endurance at the toughest end of the market.

Who it’s for (and who should look elsewhere)

This Bosch Professional GBH 2-21 is a solid pick if you want an SDS Plus hammer drill for routine professional tasks—hammer drilling into concrete, occasional chiselling, and standard drilling—without buying a separate accessory kit before you start.

It may not be the best match if: - you’re mostly drilling masonry occasionally and want the simplest, cheapest option (you could be overbuying), or - your workload is mostly heavy demolition where a more purpose-built breaker-style tool makes more sense, or - you’re looking for a single tool to constantly push maximum performance all day, every day.

Worth considering if you prefer a compact handling feel and you like having key accessories in the box.

Final verdict

Should you buy it? It’s worth considering if you need a versatile SDS Plus hammer drill for practical drilling and light chiselling, with enough impact energy for effective concrete work up to the stated 22-mm diameter and a kit that includes multiple SDS Plus bits, auxiliary handle, and a depth stop.

Don’t rush into it if you’re expecting a demolition-grade machine or you know you’ll need much larger bit sizes and specialist tooling beyond what’s included.

Mini FAQ

Is it suitable for drilling into concrete?

The description specifically mentions hammer drilling in concrete, with an indicated up to 22-mm diameter.

What does “SDS Plus” mean here?

The GBH 2-21 is supplied with SDS Plus drill bits, so it’s meant for tools and tooling that work with SDS Plus systems.

Does it come with the drill bits?

Yes. The scope of supply includes three SDS Plus bits in 6 mm, 8 mm, and 10 mm.

What’s included besides the bits?

You get an auxiliary handle, machine cloth, a depth stop/gauge, and a carrying case, plus the carrying case part listed in the scope of supply.

What’s the main limitation to be aware of?

It’s described as compact, with 2.0 J of impact energy. That’s great for everyday jobs, but it may not be the right choice for heavy demolition work or constant maximum-load use.