Rotary hammer drill bit Bosch Expert SDS Clean max-8X 28 mm x 400 mm

Bosch Expert SDS Clean max-8X 28 mm x 400 mm is a rotary hammer drill bit engineered for drilling deeper holes in concrete and masonry with SDS-compatible rotary hammers. The 28 mm diameter and 400 mm length provide extended reach while the SDS shank ensures a secure connection and rapid bit changes. The flute design promotes efficient removal of dust and debris to maintain drilling speed and reduce jamming during longer drilling operations.

Advantages

The bit combines a robust carbide tip and reinforced shaft geometry to resist wear during heavy-duty use. Its optimized flute profile and surface finish improve chip evacuation and reduce friction, helping to maintain drilling performance in dense materials. The SDS interface delivers reliable retention and fast replacement, minimizing downtime on job sites or during demanding DIY tasks.

Suitable for

• Drilling anchor and through-holes in concrete and reinforced masonry
• Installing plumbing or electrical conduits that require deep holes
• Professional construction and renovation tasks requiring extended-reach drilling
• Home improvement projects where reliable dust removal and consistent cutting are needed

Key specifications

• Diameter: 28 mm
• Total length: 400 mm
• Shank type: SDS-compatible shank for rotary hammers
• Tip material: carbide tip for drilling in concrete and masonry
• Design features: fluted body for chip evacuation and reduced friction

How to use

Securely insert the SDS shank into the rotary hammer’s chuck until it locks. Select the hammer or rotary-percussion mode appropriate for concrete or masonry. Start drilling at low speed to establish the hole, then apply steady pressure while allowing the tool to do the work; avoid excessive lateral force. Periodically pull the bit out to clear accumulated dust and allow cooling, especially when drilling to full depth. Replace the bit when cutting performance noticeably declines or the tip shows visible wear.

Recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust mask. For reinforced concrete, consider using a pilot hole or step-drilling technique and verify rebar location before drilling. Store the bit in a dry place to prevent corrosion and inspect before use for signs of damage.