Drill bit Dedra WPQ1041, diameter 1 cm, 135° point angle, for concrete/brick/stone/aerated concrete, 1 pc

Dedra WPQ1041 is a single 1 cm masonry drill bit designed for rotary and hammer drilling in concrete, brick, natural stone and aerated concrete. The bit features a 135° point angle that helps with centering and reduces walking on hard surfaces, making it suitable for anchor, dowel and through-hole drilling in building and renovation projects. Supplied as one piece, this drill bit is intended for use with standard SDS-plus or chucked rotary hammer and drill setups that accept straight-shank masonry bits of this diameter.

Advantages

The 135° point angle improves initial contact and maintains drilling accuracy on flat or glazed masonry surfaces. The single-piece supply provides a ready spare or replacement for jobs requiring a specific 1 cm diameter hole. The geometry and cutting profile are optimized for masonry drilling to reduce breakout and achieve consistent hole quality when installing anchors, dowels or through-fixing elements.

Suitable for

• Drilling anchor and dowel holes in concrete and brick
• Creating through-holes for pipes and conduit in masonry
• Drilling into natural stone for fixing or mounting
• Working with aerated concrete where controlled hole size is needed

Key specifications

• Diameter: 1 cm
• Point angle: 135°
• Material compatibility: concrete, brick, natural stone, aerated concrete
• Quantity: 1 piece
• Intended drilling modes: rotary and hammer (masonry) drilling

How to use

Mark the drilling position and secure the workpiece or ensure stable footing. Select a drill or rotary hammer compatible with straight-shank masonry bits and set the appropriate mode (rotary or hammer) according to the material. Start drilling at low speed to establish the pilot position, then increase to steady pressure and speed while allowing the tool to advance without forcing. Retract occasionally to clear dust from the hole and maintain cooling. For deeper holes, withdraw the bit regularly to remove debris and prevent binding.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, hearing protection and a dust mask. For best results, match drill speed and hammer action to the material: use hammer mode for hard concrete and stone, and rotary or reduced hammer action for soft or aerated concrete. Ensure drill chuck or holder grips the bit securely before operation.