Concrete SDS‑Max Drill Bit GRAPHITE 24 x 800 mm S4 quatro

GRAPHITE Concrete SDS‑Max Drill Bit 24 x 800 mm S4 quatro is a rotary hammer accessory designed for drilling deep holes in reinforced and non‑reinforced concrete and masonry. The SDS‑Max shank fits heavy‑duty rotary hammers and provides secure engagement for consistent power transfer. The extended 800 mm length allows access to deep anchoring points and through‑thickness drilling in construction and renovation tasks. Construction‑grade cutting geometry and flute design support efficient debris removal and stable drilling performance.

Advantages

The S4 quatro tip geometry improves centring and reduces wandering when starting holes, while its reinforced carbide cutting edges maintain cutting performance under load. The SDS‑Max shank ensures reliable retention in rotary hammer chucks and reduces slippage during heavy work. Extended length combined with optimized flute channels accelerates dust evacuation and helps preserve bit life by reducing heat buildup and friction.

Suitable for

• Drilling anchor holes for bolts and rebar in concrete
• Through‑drilling for plumbing, electrical and HVAC installations
• Preparing deep holes for chemical anchors and fixings
• Renovation and structural work in masonry and reinforced concrete

Key specifications

• Shank type: SDS‑Max compatible
• Drill diameter: 24 mm
• Overall length: 800 mm
• Tip design: S4 quatro carbide tip for improved centring
• Material suitability: reinforced and non‑reinforced concrete, masonry
• Flute design: optimized for rapid dust removal and stable drilling

How to use

Install the drill bit into the rotary hammer's SDS‑Max chuck, ensuring it locks securely before operation. Select appropriate hammering and rotation settings for the material and diameter; begin drilling at low speed to locate the point, then apply steady pressure while maintaining tool alignment. Withdraw the bit periodically to clear debris from the hole and inspect the tip for wear. For through‑drilling or deep holes, retract the bit several times to accelerate dust extraction and avoid excessive heat buildup.

Usage recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and dust mask. Prefer rotary hammers with adequate power and SDS‑Max compatibility for continuous heavy‑duty drilling. For best results in reinforced concrete, use steady pressure and allow the carbide tip to do the cutting; avoid excessive side loads that can damage the tip or shaft.