Concrete drill bit Abraboro SDS-Plus 8 mm x 310/260 mm, 4-flute

Abraboro concrete drill bit SDS-Plus 8 mm x 310/260 mm, 4-flute is a rotary-hammer accessory designed for drilling reinforced concrete, masonry and other mineral substrates. The bit features an SDS‑Plus shank for use with compatible hammer drills, a nominal diameter of 8 mm and an overall length of 310 mm with a working length of 260 mm. The four‑flute geometry supports efficient dust evacuation and stable drilling behaviour when making through‑holes, anchor holes and dowel fixings in construction and renovation applications.

Advantages

The four‑flute design improves removal of drilling debris and reduces clogging, which helps maintain cutting efficiency and cooling during prolonged use. The SDS‑Plus shank ensures secure tool engagement and quick bit changes without additional adapters. A defined working length of 260 mm allows reaching deep positions while the overall length provides balance and control. The hardened cutting tip and robust flute profile are intended to offer consistent performance in concrete and masonry substrates.

Suitable for

• Drilling anchor and fixing holes in concrete and blockwork
• Creating through‑holes for pipes and conduits in renovation work
• Installing reinforcement dowels and bolts in structural applications
• General masonry drilling with SDS‑Plus hammer drills

Key specifications

• Shank type: SDS‑Plus compatible
• Nominal diameter: 8 mm
• Overall length: 310 mm
• Working/drilling length: 260 mm
• Flute design: 4‑flute for improved dust removal
• Intended materials: concrete, reinforced concrete, masonry

How to use

Fit the drill bit into an SDS‑Plus hammer drill and ensure it is fully seated and locked before operation. Select the hammer or rotary‑hammer mode suitable for concrete drilling and set the appropriate drilling speed as recommended by the drill manufacturer. Start drilling with light pressure to establish the hole, then apply steady, even pressure while allowing the hammer action to do the work. Periodically withdraw the bit to clear accumulated dust and prevent overheating when drilling deep or multiple holes.

Usage recommendations

Use personal protective equipment such as safety glasses, hearing protection and dust mask when drilling. For reinforced concrete, consider using short pecks and intermittent withdrawal to prevent tool overheating. Match the drill bit diameter to anchor and fastener requirements and follow anchor manufacturer instructions for hole depth and cleaning prior to installation.