Fischer 531771 Brad Point Drill Bit 6.5 mm for Rotary Hammer

The Fischer 531771 brad point drill bit with a 6.5 mm diameter is specifically engineered for use with rotary hammers, providing reliable performance for both professional construction work and DIY projects. This high-quality hammer drill bit is designed to create approval-compliant holes in concrete, masonry, and natural stone. Featuring an SDS Plus holder, a 100 mm flute length, and a 160 mm overall length, it ensures stable and efficient operation during demanding drilling tasks.

Advantages

The optimised geometry of the drill bit enables fast drilling progress while significantly reducing wear and operational effort. The integrated Power Breaker technology creates micro-cracks in the building material through a destructive effect, which noticeably improves drilling speed. Enlarged reinforcement chamfers minimize the risk of the bit jamming when hitting concrete reinforcements. Additionally, the two-flute spiral Vario KVS helix ensures optimum transportation of drilling dust and efficient energy transfer, while the centering tip allows for simple, accurate spot drilling and prevents the bit from slipping on smooth surfaces.

Suitable for

• Drilling in concrete
• Drilling in brick and masonry
• Drilling in natural stone
• Professional construction and renovation tasks
• DIY projects requiring precise anchor holes

When it may not be suitable

This drill bit is not designed for drilling in wood, plastics, or soft metals due to its aggressive hammer-action geometry and concrete-breaking features. It is also unsuitable for standard rotary drills that lack an SDS Plus hammer mechanism.

Key specifications

• Brad point drill bit type
• Drill bit diameter: 6.5 mm
• Flute length: 100 mm
• Overall length: 160 mm
• SDS-Plus adapter
• Power Breaker technology
• Centring tip
• Enlarged reinforcement chamfers
• Vario KVS helix
• Compatible with brick, concrete, and natural stone

How to use

Insert the drill bit securely into a compatible SDS Plus rotary hammer chuck until it locks into place. Position the centering tip at the desired spot on the work surface, ensuring the rotary hammer is set to the correct hammer-drill mode. Apply steady, moderate pressure while drilling, allowing the tool and bit mechanism to do the heavy work. Periodically clear drilling dust from the hole during deep drilling operations to maintain efficiency and prevent overheating.

What to consider before purchase

• Verify that your drilling tool is compatible with SDS Plus shank adapters
• Check that the 6.5 mm diameter matches your fastener or anchor requirements
• Ensure the 160 mm overall length is adequate for your required drilling depth

Always wear appropriate personal protective equipment, including safety glasses, dust masks, and hearing protection, when operating a rotary hammer. Inspect the drill bit for wear or damage before each use to ensure safe and precise operation.