The Bosch EXPERT SDS-plus-7X hammer drill, Ø 16 mm (working length 250 mm) is a specialized drill bit for use with electric hammers with the SDS-plus fastening system. It is designed for fast and reliable drilling in concrete and stone, making it suitable for both home users and professional craftsmen who often work with robust building materials. With this drill bit, you can drill larger holes in walls, floors or ceilings made of hard materials precisely and efficiently without unnecessary effort.

Its design ensures high stability when drilling even with larger diameters, which is important when you want to achieve clean, straight holes through reinforced concrete or natural stone. For the user, this means less vibration and a more consistent result with every operation, whether in residential or commercial spaces or during renovations.

Evaluation of key product features

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The drill bit is based on a quadruple spiral geometry and an improved carbide tip, which enables efficient dust removal and prevents jamming in hardened materials, extending the tool life. When drilling into concrete or stone, this design reduces the possibility of jamming and ensures faster progress without frequent stops to clean the hole.

With a diameter of 16 mm and a working length of 250 mm, it is suitable for drilling larger holes, such as for installing electrical installation boxes, window and door fixings or other construction solutions where a deeper or wider hole is required. In practice, the larger diameter means that it can be used in more advanced projects where classic drills are not enough.

The SDS-plus interface ensures quick changes and secure attachment of the drill bit to the electric hammer, saving time and reducing the risk of slipping during use. For home users and experienced craftsmen, this means greater productivity and fewer interruptions to work, especially on projects where precision and durability are key.

The combination of robust materials, extended overall length and adaptation to concrete and stone allows you to achieve professional results even in more demanding conditions, such as drilling into reinforced concrete walls or natural stone, regardless of whether you are carrying out the project at home, in the garden or in a larger construction site.

It is important to know

Before purchasing this drill bit, it is crucial to check that it is compatible with your power tool and the type of material you will be drilling in. The large working length and diameter allow you to drill larger holes in harder materials, but this also means a stronger tool and a bit more dexterity when working. The practical differences between similar drill bits may not be obvious in the specifications, so it is good to understand the key details of use.

• The drill bit is specifically designed for drilling into concrete and stone – check that it meets your requirements for hole depth and diameter.
• For effective use, your drill must be compatible with the SDS-plus system - check the connector on your tool before purchasing.
• Longer drill bits like this require more attention to accuracy and drilling stability, especially when starting to drill into harder materials.
• For more demanding or repetitive work in concrete, a more robust design can mean a longer lifespan compared to universal or shorter drill bits.

Source of editorial recommendations: general verifiable guidelines for product selection.

In practice

🟢 Drilling into concrete

Very suitable - the drill has the appropriate design and dimensions for effective drilling in concrete, but you need a compatible SDS-plus tool.

🟢 Drilling in stone

Very suitable - the robust diameter and type of drill bit enable reliable drilling into natural stone or masonry.

🟡 Drilling in a confined space

Suitable with limitations – the long working length of the drill bit allows you to reach deeper places, but limits working in very narrow or inaccessible spaces.

🔴 Drilling in wood or metal

Less suitable – this drill bit is optimized for drilling into hard materials like concrete and stone, so it won't be effective in wood or metal.

Answers to frequently asked questions

Is this drill bit compatible with all SDS-plus tools?

The drill bit is compatible with standard SDS-plus chucking systems; please check your tool's instructions beforehand.

What does a working length of 250 mm mean in practice?

This means you can drill deeper holes or access harder-to-reach places if your tool allows it.

Is it suitable for drilling larger diameter holes in concrete?

Yes, the 16 mm diameter allows for drilling larger holes in concrete walls and floors.

What if I need a drill bit for occasional use in lighter materials?

This drill bit is optimized for harder materials; for lighter materials such as wood or for infrequent use, choose a more appropriate drill bit.

Description updated: August 2026

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