Masonry drill bit DeWalt DT8940-QZ 14 mm for rotary hammer, 1 pc

DeWalt DT8940-QZ masonry drill bit, 14 mm diameter, designed for use with rotary hammers and SDS Plus chucks. This single-piece masonry drill bit is engineered for drilling into concrete, brick and stone, with a carbide tip brazed to the body to deliver consistent drilling performance. The 4-flute helix and optimized tip geometry promote rapid material removal and efficient chip evacuation, enabling reliable hole preparation for anchors, plugs and through-drilling in construction and renovation tasks.

Advantages

The carbide tip with four cutting faces reduces risk of jamming when encountering reinforcement and provides durable cutting performance. A solid-piece construction and robust brazing between tip and body provide improved strength and service life under heavy-duty rotary hammer use. The 4-flute design accelerates debris removal for faster advance rates and clearer holes, while compatibility with SDS Plus rotary hammers ensures secure retention and efficient power transfer.

Suitable for

• Drilling anchor and plug holes in concrete and masonry
• Installing fixings in brick, blockwork and natural stone
• General construction and renovation drilling with rotary hammers

Key specifications

• Drill bit diameter: 14 mm
• Overall length: 260 mm
• Shank type: SDS Plus
• Tip material: solid carbide with brazed joint
• Flute design: 4-flute helix for fast chip removal
• Suitable materials: concrete, masonry, stone
• Package quantity: 1 piece

How to use

Fit the drill bit into an SDS Plus rotary hammer according to the tool manufacturer’s instructions. Mark the drilling location and start at low speed to position the tip, then apply steady forward pressure with hammering action enabled for masonry. Periodically withdraw the bit to clear debris and reduce heat build-up; when drilling deep holes, withdraw more frequently to evacuate dust and prolong bit life. Use appropriate personal protective equipment including eye protection, hearing protection and a dust extraction system or vacuum where possible.

Usage recommendations

For best results when drilling into reinforced concrete, use progressive drilling with steady pressure and allow the carbide tip to do the cutting. Avoid excessive side load or twisting to prevent premature wear. When installing anchors or plugs, ensure hole depth and diameter match the fixing manufacturer’s guidance.