Drill bit Dedra WPQ1831 — 1.8 cm diameter, 135° point, for concrete/brick/stone/aerated concrete, 1 pc

Dedra WPQ1831 percussion drill bit, diameter 1.8 cm and 135° point angle, is engineered for drilling into concrete, brick, natural stone and aerated concrete. Supplied as a single piece, this masonry drill bit is compatible with hammer and rotary-percussion drills and is intended for tasks such as anchor and fastening installation, drilling for renovation works, and general masonry penetrations where a durable carbide tip is required.

Advantages

The 135° point ensures accurate centring and reduced walking on the work surface, while the 1.8 cm diameter provides a balance between hole size and material removal rate. The carbide tip is designed to resist wear and maintain cutting performance when used in masonry materials. Supplied as an individual unit, the bit is convenient for selective replacement and for projects that require specific hole diameters without excess inventory.

Suitable for

• Drilling anchor holes in concrete and brick
• Installing fasteners and threaded inserts
• Masonry renovation and retrofit work
• Drilling into aerated concrete for fixtures
• Creating passages through natural stone for mechanical fixings

Key specifications

• Diameter: 1.8 cm
• Point angle: 135°
• Suitable materials: concrete, brick, natural stone, aerated concrete
• Package quantity: 1 piece
• Compatible with: hammer drills and rotary-percussion drills for masonry

How to use

Secure the Dedra WPQ1831 drill bit in the chuck of a suitable hammer or rotary-percussion drill according to the drill manufacturer’s instructions. Mark and, if needed, centre-punch the drilling position. Use the percussion mode for concrete, brick and stone; apply steady, moderate pressure and allow the bit to advance at its own cutting rate. Withdraw the bit periodically to clear debris and avoid overheating. For aerated concrete, a lower percussion intensity or rotary mode may be used depending on material density.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, dust mask and hearing protection. Match drilling speed and percussion settings to the material to prolong bit life: higher percussion for dense concrete and reduced impact for aerated blocks. Replace the bit when the carbide tip shows significant wear to maintain drilling accuracy and safety.