Drill Bit Smart SDS‑Plus Duo 14 x 300/250 mm

The Smart SDS‑Plus Duo 14 x 300/250 mm is a hard-material drill bit designed for rotary and hammer drills with SDS‑Plus chucks. It has a 14 mm diameter, 300 mm overall length and 250 mm working length, and is intended for drilling in concrete, masonry and natural stone. The reinforced shank is shaped to fit SDS‑Plus systems while the tip geometry and flute design support efficient dust evacuation and steady penetration under hammer action.

Advantages

The Duo design combines a robust carbide tip profile with a reinforced shank to improve centring and reduce breakage risk during heavy-duty use. Optimised flute geometry removes debris and dust from the hole, maintaining drilling speed and reducing heat buildup. Compatibility with SDS‑Plus chucks allows quick, secure tool changes and reliable transfer of hammer energy for effective drilling in hard substrates.

Suitable for

• Drilling anchor and fixing holes in concrete and reinforced concrete
• Creating passage holes in brickwork and masonry
• Drilling into natural stone for installations and fixtures
• Use with SDS‑Plus rotary hammer drills for medium to heavy drilling tasks

Key specifications

• Diameter: 14 mm
• Overall length: 300 mm
• Working length (flute length): 250 mm
• Shank type: SDS‑Plus compatible reinforced shank
• Tip: carbide‑tipped geometry for efficient dust removal and stable drilling
• Primary materials: suitable for concrete, masonry and natural stone

How to use

Fit the drill bit into an SDS‑Plus rotary hammer chuck until it locks. Select the hammer drilling mode on your tool and set an appropriate speed and impact setting according to the drill and substrate hardness. Start drilling with a light initial pressure to establish the hole, then apply steady, moderate pressure while allowing the hammer action to do most of the work. Periodically withdraw the bit to clear accumulated dust and debris from the hole and flutes for consistent drilling performance.

Usage recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust mask when drilling. For reinforced concrete, check for reinforcement locations before drilling. For long or deep holes consider intermittent withdrawal to cool the bit and remove debris. Match drill speed and impact force to substrate hardness and the drill manufacturer's recommendations to extend bit life.