Drill bit DeWALT DT4947-QZ — DeWALT DT4947 hex-shank masonry drill bit

DeWALT DT4947-QZ is a masonry drill bit with a hex shank designed for drilling into concrete, brick and natural stone. The bit’s hex shank allows secure seating in hammer drills and impact drivers with hex chucks, enabling quick bit changes and reduced slipping during rotation. It is intended for common masonry tasks such as installing anchors, fixing fixtures and creating holes for pipework or conduit in solid substrates.

Advantages

The hex shank design improves retention in quick-change chucks and impact drivers, reducing wobble and improving control. A carbide tip and a flute profile designed for efficient dust evacuation enhance drilling speed and maintain cutting performance over repeated use. The robust construction provides resistance to wear when used on concrete and brick, while the straight flute geometry helps to clear debris and minimise binding.

Suitable for

• Drilling anchor holes in concrete and masonry
• Installing wall fixings and clips in brick or block
• Creating openings for conduit, pipes and cable entry in solid substrates
• General maintenance and construction masonry drilling tasks

Key specifications

• Type: masonry drill bit with hex shank
• Shank: hexagonal for quick-change and impact driver compatibility
• Tip: carbide tip for effective cutting in concrete and masonry
• Flute: straight flute for efficient dust removal
• Compatibility: suitable for hammer drills and impact drivers with matching hex chuck
• Typical use: concrete, brick, natural stone and block

How to use

Select a drill and chuck compatible with hex-shank bits, then secure the DeWALT DT4947-QZ bit firmly in the chuck. Use the hammer or impact mode if available when drilling into concrete or dense masonry. Start at low speed to position the tip, then increase to moderate speed while applying steady, even pressure. Withdraw the bit periodically to clear dust and prevent overheating. For through-holes, support the opposite side of thin substrates to avoid spalling.

Usage recommendations

Wear appropriate eye, ear and hand protection when drilling masonry. Use a vacuum or dust extraction where possible to control silica dust. Match the bit diameter to the anchor or fixing specified by the manufacturer and avoid excessive lateral force to prolong bit life.