Hammer drill bit Bosch Expert SDS Clean plus-8X 18 mm diameter 400 mm length

The Bosch Expert SDS Clean plus-8X hammer drill bit with an 18 mm diameter and 400 mm length is engineered for rotary hammer use with SDS chuck systems. It is intended for drilling deeper holes in concrete and masonry where a long reach and reliable drilling performance are required. The SDS shank provides secure engagement with compatible rotary hammers and facilitates quick bit changes during continuous work.

Advantages

This drill bit combines a long 400 mm working length with an 18 mm cutting diameter to reach deep anchoring points and through-thickness drilling in solid materials. The SDS-compatible shank ensures a firm mechanical connection to rotary hammer tools, reducing play and improving energy transfer. The carbide tip and flute geometry are designed to evacuate dust and debris efficiently during drilling, supporting steady progress in concrete and masonry.

Suitable for

• Drilling deep anchor holes in concrete and reinforced concrete
• Through-holes in masonry walls and thick structural elements
• Overhead drilling where extended reach is needed
• Preparation of fixing points for mechanical anchors and sleeve anchors

Key specifications

• Diameter: 18 mm
• Overall length: 400 mm
• Shank type: SDS-compatible shank for rotary hammer systems
• Intended material: concrete and masonry
• Tip material: tungsten carbide cutting tip
• Flute design: dust evacuation geometry for efficient removal of drilling debris

How to use

Select a rotary hammer with an SDS chuck that is rated for the required drilling diameter and depth. Mark the drilling point, secure workpieces if possible, and set the tool to hammer drilling mode. Insert the Bosch Expert SDS Clean plus-8X bit until it locks in the SDS chuck. Apply steady axial pressure and let the tool deliver the impact energy; avoid excessive force that can increase bit wear. Periodically withdraw the bit to clear dust and check progress when drilling deep holes. Use appropriate personal protective equipment such as safety glasses, hearing protection and dust mask.

Usage recommendations

For longest service life, use the bit at the recommended hammer speed and avoid lateral forces. When drilling reinforced concrete, proceed carefully to minimize overheating of the carbide tip; withdraw the bit regularly to remove debris. Replace the bit if the cutting performance noticeably decreases or if the tip is damaged.