Drill bit DeWalt DT9616-QZ 26 mm x 450 mm for rotary hammer, 1 pc

DeWalt DT9616-QZ 26 mm x 450 mm drill bit is made for rotary hammers and intended to create large-diameter, deep holes in masonry and concrete. The single-piece design and 26 mm cutting diameter deliver stable drilling performance when paired with compatible hammer drill modes. This 450 mm length provides access for through-drilling and anchoring tasks where extended reach is required. The bit is supplied as a single unit suitable for professional contractors and serious DIY users working on solid materials.

Advantages

The tungsten carbide tip and robust shank construction are optimized for impact drilling in hard substrates while maintaining bit life and cutting efficiency. The long 450 mm length reduces the need for extensions when drilling deep holes and enables efficient debris removal. Compatibility with rotary hammer modes ensures controlled percussive action and reliable centring during large-diameter drilling operations.

Suitable for

• Drilling large-diameter holes in concrete for anchor installation and through-fixing
• Creating holes in masonry blocks and brickwork for plumbing or electrical conduits
• Preparing openings for dowels, sleeves, and chemical anchors
• Professional construction, renovation and heavy-duty DIY projects that require extended reach

Key specifications

• Drill diameter: 26 mm
• Total length: 450 mm
• Tool type compatibility: rotary hammer (SDS-plus/SDS-max compatibility depends on machine chuck—verify before use)
• Tip material: carbide cutting tip for masonry and concrete
• Shank type: impact-capable shank designed for hammer drilling

How to use

Install the bit into a compatible rotary hammer according to the machine manufacturer’s instructions, ensuring the chuck securely locks the shank. Select the hammer-drill function and start drilling at low speed to establish a clean starting point, then apply steady pressure and allow the hammer action to advance the hole. Periodically withdraw the bit to clear dust and debris and to reduce heat buildup. Use appropriate drill speeds and impact settings for the material being drilled.

Usage recommendations

Always wear eye, hearing and respiratory protection when drilling masonry or concrete. Verify that the rotary hammer’s chuck type matches the bit shank before use, and use correct anchors and hole depths for fixings. For optimal bit life, avoid excessive side loading and allow the tool to do the work rather than forcing the bit.