Drill Bit Bosch SDS plus-7X 20 x 550 x 600 mm 2608900144

Bosch SDS plus-7X 20 x 550 x 600 mm is a long SDS-plus drill bit developed for professional and DIY use when drilling deep holes in concrete, masonry and natural stone. The bit features an extended working length of 550 mm and an overall length of 600 mm, allowing access to recessed drilling positions and through‑work in thick structural elements. The SDS-plus shank ensures secure tool engagement and compatibility with SDS-plus rotary and rotary‑hammer drills.

Advantages

The flute geometry and threaded connection are engineered to improve dust extraction and reduce clogging during prolonged drilling, providing more stable progress and lower operator effort. The carbide tip is shaped and brazed to withstand impact loads and maintain cutting performance across repeated holes. The extended length offers better reach without sacrificing rigidity, and the SDS-plus interface guarantees quick bit changes and firm retention in compatible drills.

Suitable for

• Drilling deep anchor and through holes in reinforced and non-reinforced concrete
• Installing dowels, sleeves and long fasteners in masonry
• Creating passages for cables and pipes through stone walls
• Renovation work where access requires a long reach

Key specifications

• Diameter: 20 mm
• Working length: 550 mm
• Overall length: 600 mm
• Shank type: SDS-plus
• Tip material: carbide
• Intended materials: concrete, masonry, natural stone

How to use

Select a compatible SDS-plus rotary or rotary‑hammer drill and secure the bit in the chuck according to the drill manufacturer's instructions. Mark the drilling position and, if necessary, start with a smaller pilot hole. Use the hammer function for concrete and masonry, applying steady axial pressure while keeping the drill perpendicular to the surface. Withdraw the bit periodically to clear debris and prevent overheating; the flute design assists with dust removal during operation.

Recommendations

For extended service life, operate the bit at the recommended drilling speeds of your SDS-plus tool and avoid excessive side loads. When drilling reinforced concrete, reduce pressure when the bit meets rebar and use suitable rebar cutting procedures. Store the bit dry and protected to prevent damage to the carbide tip.