Hammer drill bit Bosch Expert SDS Max-8X 8 x 250 mm

Bosch Expert SDS Max-8X 8 x 250 mm is a hammer drill bit engineered for use with SDS Max rotary hammers. Designed for drilling into concrete and masonry, this 8 mm diameter, 250 mm length bit provides the reach needed for deeper anchor and through-holes. The SDS Max shank ensures secure retention in compatible chucks and enables fast, tool-free bit changes when working on construction or renovation tasks.

Advantages

The SDS Max shank offers reliable engagement with rotary hammers to reduce slippage during heavy-duty impact drilling. The geometry of the cutting head and flute promotes efficient debris removal and steady drilling progress in concrete and masonry. The bit is built to deliver consistent hole dimensions over repeated use and to withstand intensive professional and advanced DIY applications.

Suitable for

• Drilling anchor holes in concrete and reinforced concrete
• Forming through-holes for cable or pipe routing in masonry walls
• Preparation of fixing points for structural and non-structural installations
• Contractor and renovation projects requiring repeated deep drilling

Key specifications

• Compatibility: SDS Max rotary hammers
• Diameter: 8 mm
• Overall length: 250 mm
• Material application: concrete, masonry, and similar mineral substrates
• Shank type: multi-groove SDS Max for positive bit engagement

How to use

Install the Bosch Expert SDS Max-8X bit into the SDS Max chuck of a compatible rotary hammer following the tool manufacturer's instructions for secure seating. Select hammer or hammer-drill mode appropriate for concrete and masonry. Begin drilling at low speed to establish the hole position, then apply steady axial pressure and maintain the rotary hammer at a right angle to the surface while allowing the tool's percussive action to advance the hole. Periodically withdraw the bit to clear dust and debris for improved cutting efficiency and to avoid jamming. Use appropriate personal protective equipment such as eye and hearing protection and a dust mask when drilling.

Recommendations

For prolonged bit life and consistent performance, use the bit with rotary hammers that match the SDS Max interface and select drilling parameters recommended for 8 mm diameter holes in concrete. Avoid side loading and overheating by letting the tool do the work and by clearing debris regularly. For drilling into reinforced concrete, use controlled feed pressure and withdraw frequently to reduce friction and chip packing.