Drill bit Dedra WPQ0521 — 5 mm, for concrete/brick/stone/aerated concrete, 135° point, 1 pc

Carbide-tipped Dedra WPQ0521 drill bit with a 5 mm cutting diameter is designed for drilling into concrete, brick, stone and aerated concrete. The bit features a 135° point angle that helps reduce spalling and provides accurate starts on masonry surfaces. Supplied as a single piece, this drill bit is intended for use with rotary and hammer drilling modes in common repair, installation and construction tasks.

Advantages

The carbide tip increases wear resistance and maintains sharpness during repeated use in abrasive masonry materials. The 135° point angle improves centring and minimizes surface chipping at the drill entry. Compatible with standard SDS-plus adapters and straight-shank chucks (verify shank type before use), the bit provides reliable performance for targeted drilling operations where precision and durability are required.

Suitable for

• Drilling anchor and fixing holes in concrete and brick
• Creating openings for cable conduits and plumbing in masonry
• Installing wall plugs, screws and fasteners in stone or aerated concrete
• General repair and renovation work involving masonry surfaces

Key specifications

• Cutting diameter: 5 mm
• Point angle: 135° for reduced spalling and precise starts
• Tip material: carbide for high wear resistance
• Intended materials: concrete, brick, natural stone, aerated concrete
• Pack quantity: 1 piece
• Compatible drilling modes: rotary and hammer drilling

How to use

Select the appropriate drill speed and mode for the material: use hammer mode for dense concrete and rotary mode for softer masonry where recommended. Mark the drilling point, start at low speed to establish the centre, then increase speed and apply steady pressure. Withdraw the bit periodically from deep holes to clear dust and extend bit life. Ensure the drill chuck or adapter is compatible and securely fastened before operation.

Usage recommendations

Wear appropriate personal protective equipment including eye protection and a dust mask when drilling masonry. For best results, use a hammer drill with appropriate power for the task and consider pre-drilling pilot holes in fragile surfaces to limit chipping.