Drill bit Bosch Expert SDS-plus-7X 5 mm x 165 mm for rotary hammer drills

The Bosch Expert SDS-plus-7X masonry drill bit, 5 mm diameter and 165 mm overall length, is made for use with SDS‑plus rotary hammer drills. It is intended for drilling small, precise holes in hard substrates such as concrete, brick and other masonry. The SDS‑plus shank ensures secure retention in compatible chucks and allows fast bit changes during repetitive drilling tasks.

Advantages

This drill bit combines a slim 5 mm diameter with a 165 mm length to reach recessed or deep anchor points while maintaining stability. The SDS‑plus-7X design offers improved wear resistance and efficient dust removal from the hole, reducing heat build-up and extending tool life. Compatibility with SDS‑plus rotary hammers provides reliable power transfer and minimized slippage under load.

Suitable for

• Drilling anchor holes for small fasteners in concrete and solid brick
• Installing dowels and plugs in masonry
• Electrical and plumbing routing where precise small-diameter holes are required
• Light demolition or renovation work that requires repeated small holes

Key specifications

• Diameter: 5 mm
• Overall length: 165 mm
• Shank type: SDS‑plus
• Material/geometry: masonry‑optimized tip and flute design for efficient drilling in concrete, brick and masonry
• Recommended tool type: SDS‑plus rotary hammer drills

How to use

Select an SDS‑plus compatible rotary hammer and install the Bosch Expert SDS-plus-7X bit by inserting the shank into the chuck until it locks. Use the rotary hammer in hammer rotation mode appropriate for the substrate and apply steady axial pressure without excessive force to maintain bit alignment. Start at low speed to locate the drilling point, then increase to operational speed. Periodically withdraw the bit to clear dust from the hole and to avoid overheating when drilling deep or multiple holes.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, hearing protection and dust mask. For long drilling sequences, allow the bit to cool and clear debris frequently. Match drill diameter and depth to the dowel or anchor specifications, and ensure the rotary hammer setting and speed are suited to masonry materials to maximize bit life and drilling accuracy.