Drill bit DeWalt DT9405-QZ for rotary hammer, Ø 14 mm, length 340 mm, 1 pc

DeWalt DT9405-QZ is a 14 mm diameter drill bit designed for use with rotary hammers. With a solid length of 340 mm, this single-piece bit gives extended reach for drilling into concrete, masonry and similar materials. It is intended for hammer drilling applications where deeper, straight holes are required and where tool-to-bit connection and impact transfer must remain reliable.

Advantages

The design offers a long working length that reduces the need for extensions when reaching recessed or deep drilling points. Compatibility with SDS Max-style rotary hammer chucks ensures secure fitting and effective impact transfer. A construction-oriented material and geometry deliver consistent penetration into dense substrates while maintaining bit stability and straightness during use.

Suitable for

• Drilling through concrete and reinforced concrete
• Masonry and brickwork drilling
• Installation of anchors, dowels and through-holes for services
• Renovation and construction works requiring deep holes

Key specifications

• Diameter: 14 mm
• Overall length: 340 mm
• Shank type: SDS Max compatible
• Material: corrosion-resistant steel
• Quantity in pack: 1 piece

How to use

Fit the drill bit into the SDS Max chuck of a compatible rotary hammer according to the tool manufacturer’s instructions. Mark the drilling point and align the bit perpendicular to the surface to promote a straight hole. Start drilling with hammer mode engaged, applying steady axial pressure without forcing the bit; periodically withdraw the bit to clear dust and debris from the hole for better progress and to reduce wear. Use appropriate drilling speeds and hammer settings for concrete and masonry as recommended by the rotary hammer manufacturer.

Usage recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and a dust mask when drilling. For reinforced concrete, consider pilot holes or gradual drilling steps to reduce load on the bit. Store the bit dry and protected to preserve corrosion-resistant properties and inspect for wear or damage before each use.