Drill bit Dedra WPQ1860 — 18 mm, for concrete/brick/stone, 135° point

Dedra WPQ1860 drill bit, 18 mm diameter, is a single-piece carbide-tipped masonry bit designed for drilling into concrete, brick, natural stone and aerated concrete. The bit has a 135° point angle that helps with accurate centering and reduces walking at drill start. It is compatible with both rotary and hammer drills and is intended for construction, renovation and general masonry tasks where a robust, accurate hole is required.

Advantages

The carbide tip provides enhanced wear resistance and sustained cutting performance when working with abrasive masonry materials. The 135° point minimizes skidding on hard surfaces and improves initial engagement, while the single-piece shank ensures reliable fitting in standard chucks. This combination of features offers consistent hole quality and longer service life compared with plain steel bits when used in concrete and similar materials.

Suitable for

• Drilling anchor and fixing holes in concrete and brick
• Creating passage holes for pipes and conduits in masonry walls
• Preparing mounting points for renovation and installation work
• Drilling through natural stone and aerated concrete blocks

Key specifications

• Diameter: 18 mm
• Point angle: 135° for improved centering
• Tip material: carbide-tipped cutting head
• Construction: single-piece shank and flute design
• Compatible drill types: rotary drills and hammer drills
• Package quantity: 1 piece

How to use

Secure the Dedra WPQ1860 drill bit firmly in the drill chuck and select the appropriate drill mode — rotary or hammer — according to the material and drill manufacturer recommendations. Mark the drilling point and apply steady axial pressure while maintaining the drill at a right angle to the surface. For deeper holes, withdraw the bit periodically to clear chips and dust from the flutes. Allow the carbide tip to do the cutting; avoid excessive lateral force that could damage the bit or workpiece.

Usage recommendations

Use suitable personal protective equipment: safety glasses, hearing protection and dust mask when drilling masonry. Match drill speed and hammer action to the material: lower speeds and light hammering for hard natural stone, higher speeds and hammer action for aerated concrete. Replace the bit when wear becomes evident to maintain hole accuracy and reduce risk of breakage.