Drill bit Dedra WXQ1840, diameter 1.8 cm, 135° point angle, for concrete/brick/stone/aerated concrete

Dedra WXQ1840 drill bit, diameter 1.8 cm, with a 135° point angle, is designed for drilling into masonry materials including concrete, brick, natural stone and aerated concrete. Supplied as a single piece, this drill bit features a cutting geometry optimised for rotary and hammer drilling where the tool and chuck permit, making it suitable for repair, installation and light construction tasks that require precise round holes in hard substrates.

Advantages

The 135° point angle concentrates cutting forces for efficient penetration into dense masonry while reducing chipping and spalling around the hole edge. A 1.8 cm diameter provides a balance between hole size and structural impact, suitable for common fixings and anchors. The bit is intended for use in compatible rotary and hammer drills, allowing effective performance across a range of masonry materials.

Suitable for

• Drilling anchor and fixing holes in concrete and brick
• Creating openings for through-fixings in stone and natural masonry
• Work in aerated concrete where controlled hole dimensions are required
• Repair and installation tasks requiring a single, reliable masonry drill bit

Key specifications

• Diameter: 1.8 cm
• Point angle: 135°
• Material compatibility: concrete, brick, stone, aerated concrete
• Quantity: 1 piece

How to use

Choose a drill with suitable power and mode selection; use hammer mode for dense concrete or rotary mode for softer masonry if the drill supports both. Secure the workpiece if possible and mark the drilling position. Start drilling at low speed to establish the hole, then apply steady pressure and increase speed as appropriate. Withdraw the bit periodically to clear dust and cooling, and check hole depth frequently to avoid overdrilling. Use appropriate personal protective equipment, including eye protection and dust mask, when drilling masonry.

Usage recommendations

For best results, match drill speed and hammer action to the masonry type, use a properly sized anchor or plug for the 1.8 cm hole, and clean the hole with compressed air or a brush before inserting fixings. Replace the bit when wear increases drilling time or causes uneven holes.