Drill Bit Smart SDS Plus Duo 14 x 600/550 mm

Smart SDS Plus Duo drill bit with a 14 mm diameter and total length of 600 mm (working length 550 mm) is designed for use with SDS Plus rotary hammers. The Duo flute geometry improves debris extraction and maintains stable drilling when working in concrete, masonry and natural stone. This long-reach bit is intended for tasks that require deep holes such as anchoring, through-holes for services and installation of fasteners during construction or renovation work.

Advantages

The Duo flute profile provides faster dust and debris removal compared with standard single-flute bits, reducing clogging and keeping the hole cleaner during prolonged drilling. Reinforced tip geometry ensures reliable plunge into reinforced concrete and masonry while maintaining bit centring. The 600 mm total length with a 550 mm working section allows reaching deeper drilling points without changing to extension bars. Compatibility with SDS Plus chucks makes it suitable for a wide range of rotary hammers.

Suitable for

• Drilling deep holes for anchors and through-fixings in concrete and brick
• Creating passages for cables, pipes and service conduits
• Construction, renovation and installation works requiring extended drill reach
• Professional and DIY applications using SDS Plus rotary hammers

When it may not be suitable

This SDS Plus Duo bit is intended specifically for rotary hammers with an SDS Plus chuck and is not suitable for standard drill chucks or hammerless drills. It is optimized for concrete, masonry and stone; performance and wear characteristics may be poor if used continuously in very abrasive materials such as some types of refractory brick or hard aggregate without appropriate cooling and cleaning.

Key specifications

• Diameter: 14 mm
• Total length: 600 mm
• Working length: 550 mm
• Shank type: SDS Plus
• Flute design: Duo (dual-flute) for improved debris removal
• Intended materials: concrete, masonry, natural stone

How to use

Fit the bit into the SDS Plus chuck until it locks securely. Mark the drilling point, start at low speed to position the tip, then apply steady pressure and operate the rotary hammer in hammer-drill mode for masonry and concrete. Withdraw the bit periodically to clear debris from the hole and prevent overheating. For deep holes, remove accumulated dust with a brush or blower to maintain drilling speed and reduce wear. Always follow the rotary hammer manufacturer's instructions for operating speeds and feed pressure.

What to consider before purchase

• Confirm your rotary hammer uses an SDS Plus shank system
• Ensure a 14 mm diameter and 550 mm working length meet your required hole size and depth
• Consider the material to be drilled — suitable for concrete, masonry and stone

Usage recommendations

Use protective eyewear and hearing protection when drilling. For best results in deep holes drill in short intervals, clear debris regularly, and avoid excessive side load to reduce bit wear. Select appropriate anchor or fixing type matching the 14 mm hole diameter.