Bosch SDS max-8X drill bit 28×600/720 mm for SDS-max hammer drills

The Bosch SDS max-8X drill bit 28×600/720 mm is a heavy-duty rotary hammer accessory designed for drilling large-diameter holes in concrete, reinforced concrete and masonry. It features an SDS-max shank for secure engagement with compatible SDS-max hammer drills and optimized impact transfer, with a working length of 600 mm and an overall length of 720 mm to reach deep drilling positions while maintaining stability and control.

Advantages

This SDS max-8X drill bit combines a robust carbide tip geometry with a reinforced shaft to resist bending and chipping during demanding drilling operations. The SDS-max shank ensures quick, reliable mounting and effective impact transmission from the hammer drill to the bit. Its length and stiffness provide good straightness for long holes, while the flute design removes dust and debris efficiently to maintain drilling speed and reduce jamming.

Suitable for

• Drilling large-diameter holes in concrete for anchor installation
• Through-holes and deep drilling in blockwork and masonry
• Installation and construction tasks requiring long-reach drilling
• Professional trade work with SDS-max rotary hammer drills

Key specifications

• Diameter: 28 mm
• Working length: 600 mm
• Overall length: 720 mm
• Shank type: SDS-max compatible
• Tip material: carbide for enhanced wear resistance
• Shaft design: reinforced spiral flute for efficient dust removal

How to use

Securely insert the SDS-max shank into the chuck of a compatible SDS-max rotary hammer until it locks. Select the hammer-drilling mode and position the bit on the marked drilling point. Apply steady axial pressure, allowing the drill and carbide tip to advance the hole; avoid excessive side-loads that can cause premature wear. Periodically withdraw the bit to clear dust from the hole and prevent overheating. For through-holes, reduce feed force near breakthrough to avoid spalling.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, hearing protection and gloves) and select a compatible SDS-max hammer drill with sufficient impact energy for a 28 mm bit. For reinforced concrete, start with lower feed force and allow the drill to break the rebar gradually. Store the bit in a dry place and inspect the carbide tip before use; replace the bit when cutting edges show significant rounding or chipping to maintain drilling accuracy and safety.