Masonry drill bit DeWalt DT8907-QZ, 5 mm, for rotary hammer, 1 pc

DeWalt DT8907-QZ masonry drill bit, 5 mm diameter, supplied as a single piece, is designed for use with rotary hammers and hammer drills to bore into masonry, brick and concrete. The bit features a four-cutter carbide head brazed to the body for improved strength and cut performance, a tapered core to increase resistance to flute breakage, and an SDS Plus shank compatible with common rotary hammer chucks. With a length of 110 mm and a visible diameter wearmark, this masonry drill bit is suitable for drilling anchor holes, cable and pipe entries, and light construction tasks.

Advantages

The four-cutter carbide tip and solid-piece carbide construction reduce the risk of jamming and maintain cutting efficiency when encountering abrasive or reinforced materials. High-speed blasting and a reinforced core increase toughness and resistance to breakage during impact drilling. The 4-flute helix supports efficient debris removal for faster drilling and cleaner holes, while the SDS Plus shank ensures secure seating and quick bit changes in compatible rotary hammers.

Suitable for

• Drilling plug and anchor holes in concrete and masonry
• Creating cable and pipe entry holes in brick and blockwork
• Light construction and installation work requiring 5 mm holes

Key specifications

• Diameter: 5 mm
• Total length: 110 mm
• Tip: four-cutter carbide head
• Shank type: SDS Plus
• Flute design: 4-flute helix for debris removal
• Material suitability: concrete, masonry, stone
• Quantity: 1 piece
• Feature: diameter wearmark

How to use

Fit the DeWalt DT8907-QZ drill bit into a compatible SDS Plus rotary hammer chuck and ensure it is securely engaged before starting. Select the hammer drilling mode on the tool for masonry applications and apply steady, moderate pressure; let the drill bit do the cutting rather than forcing it. Periodically withdraw the bit to clear debris from the hole and allow cooling. For through-holes or deeper holes, use intermittent drilling to prevent overheating and reduce wear on the carbide tip.

Usage recommendations

Use appropriate personal protective equipment including eye and ear protection and a dust mask when drilling masonry. Match drill speed and hammer settings to the material density; for reinforced concrete take care when encountering rebar. Store the bit in a dry place and avoid excessive side load to maintain tip integrity and prolong service life.