DeWalt Extreme2 SDS-Plus Drill Bit 10 mm × 1000/950 mm BD-DT9547

DeWalt Extreme2 SDS-Plus Drill Bit 10 mm × 1000/950 mm BD-DT9547 is a long-reach rotary hammer drill bit engineered for drilling through concrete and masonry with SDS-Plus chucks. The 10 mm diameter, 1000 mm overall length and 950 mm working length provide the reach needed for deep anchoring, through-holes and installations where standard-length bits are insufficient. The bit’s helical flute ensures consistent dust evacuation while the reinforced tip geometry improves drilling efficiency and extends tool life during repeated use in hard substrates.

Advantages

The reinforced tip geometry reduces breakage and improves centring when starting holes in concrete and masonry. A helical flute design promotes effective dust removal from deep holes, helping to maintain cutting performance and reduce clogging. The long working length enables drilling of deep anchor points and through-holes without changing tools, saving time on jobs that require extended reach. Compatibility with SDS-Plus chucks ensures a secure fit and reliable power transfer from rotary hammers designed for masonry drilling.

Suitable for

• Drilling deep anchor holes in reinforced and non-reinforced concrete
• Creating through-holes for pipes or conduits in masonry walls
• Installation of long fasteners, threaded rods and chemical anchors
• Construction and renovation tasks requiring extended-reach drilling

Key specifications

• Diameter: 10 mm
• Overall length: 1000 mm
• Working length (cutting length): 950 mm
• Shank type: SDS-Plus compatible
• Flute type: Helical flute for dust evacuation
• Tip: Reinforced tip geometry for improved centring and durability
• Intended materials: Concrete and masonry

How to use

Fit the drill bit securely into an SDS-Plus chuck and ensure the rotary hammer is set to hammer-drill mode. Mark the drilling position, start at low speed to establish the hole and then apply steady pressure while allowing the hammer action to drive the bit. Periodically withdraw the bit during deep drilling to clear dust and debris from the hole and improve cutting performance. Use protective equipment including eye protection, hearing protection and a dust extraction or vacuum where possible to reduce airborne particulates.

Usage recommendations

For best results, use with rotary hammers rated for SDS-Plus bits and select appropriate drill speeds and impact rates recommended by the tool manufacturer. When drilling deep holes, withdraw the bit at intervals to remove dust, and inspect the tip for wear; replace the bit if the tip becomes rounded or performance decreases. Store the bit dry and protected to avoid corrosion and mechanical damage.