Concrete drill bit | SDS plus

SDS-plus concrete drill bit is a high-quality hammer drill bit, specially developed for efficient drilling in concrete, reinforced concrete, natural stone, and brick. It is equipped with a durable carbide tip and a spiral design that provides fast material removal, efficient dust extraction, and reduced heat buildup. The drill bit offers precise centering, quick drill starts, and a long service life even during demanding work. Length (mm) corresponds to the L1 measurement on the dimension drawing.

The SDS-plus shank ensures optimal power transmission and fits all rotary hammers and impact drills with an SDS-plus chuck. The design provides stable and secure drilling even in high-vibration environments.

AREA OF APPLICATION

Rotec SDS-plus concrete drill bit is used for drilling in concrete, reinforced concrete, natural stone, and brick. It is suitable for construction, installation, HVAC, electrical wiring, and fastenings in walls, floors, or ceilings – both indoors and outdoors where reliable drilling is required.

TECHNICAL SPECIFICATIONS

Product type: Concrete drill bit
Standard: Not specified
Quality: Carbide tip, hardened steel
Application material: Concrete, reinforced concrete, natural stone
Thread type: Not applicable
Surface treatment: Untreated (natural steel finish)
Head shape: Cylindrical with spiral
Grip type: SDS-plus (ø10 mm)

FREQUENTLY ASKED QUESTIONS (FAQ)

What does the SDS-plus shank mean and which machines does it fit?

SDS-plus (Special Direct System) is the global industry standard for tool shanks on small to medium-sized rotary hammers:

• Tool-free replacement: The system uses grooved shanks that lock the drill bit into the chuck quickly without the need for tools or a chuck key.

• Optimal power transmission: Allows the drill bit to move axially in the chuck, ensuring the hammer's impact energy is transferred directly to the drill tip and the concrete without energy loss.

• Universal compatibility: Fits all corded and cordless rotary hammers on the market equipped with an SDS-plus chuck.

How do the carbide tip and spiral design contribute to efficient drilling?

The combination of tip technology and geometry is decisive for the drill's performance and service life:

• Cutting Carbide Tip: The wear-resistant carbide tip crushes the concrete structure and maintains its sharpness even during demanding drilling. If rebar is hit, the hole should be moved or a special rebar drill bit should be used.

• Centering tip: Enables precise starting without the drill "wandering" or slipping on smooth concrete and stone surfaces.

• Optimized transport spiral: The deep spiral geometry quickly feeds drill dust and crushed material out of the hole. This reduces friction, lowers the operating temperature, and prevents the drill from binding or getting stuck in deep holes.

What should one keep in mind when drilling in reinforced concrete and hard natural materials?

1. Let the machine do the work: The SDS-plus system works with impact energy. Do not press excessively hard against the machine – too much feed pressure increases wear on the carbide tip and reduces drilling speed.

2. Cooling and cleaning: Periodically pull the drill bit out of deep holes to remove accumulated dust. This prevents overheating and maintains maximum drilling performance.

3. Cleaning drill holes: When installing, for example, drop-in anchors (HE-A4) or chemical anchors, it is critical to brush out and blow the hole clean of dust to ensure full strength in the anchorage.