KWB 044670 Broca helicoidal para betão com pastilha de metal duro 7 mm x 100 mm haste cilíndrica

With a tungsten carbide tip and a 7 mm diameter, this KWB concrete spiral drill bit delivers clean, precise holes in concrete, masonry, stone, and brick. Its 100 mm total length and cylindrical shank fit standard 3-jaw chucks on rotary and hammer drills.

Overview

The KWB 044670 is a carbide-tipped spiral drill bit engineered for tough drilling tasks in hard materials. The tungsten carbide tip maintains sharpness and resists wear, while the spiral flute design efficiently removes debris for faster drilling. A centering tip ensures accurate hole placement, reducing wandering on smooth surfaces.

What stands out

• Tungsten carbide tip for long-lasting performance in abrasive materials
• Spiral flute design for efficient chip removal and reduced heat build-up
• Centering tip for precise starting without a pilot hole
• Cylindrical shank compatible with standard 3-jaw chucks
• Suitable for rotary drilling with hammer action in concrete and masonry

Technical details

• Diameter: 7 mm
• Total length: 100 mm
• Shank type: Cylindrical
• Shank diameter: 7 mm
• Tip material: Tungsten carbide
• Flute design: Spiral (U-flute)
• Number of cutting edges: 2
• Application: Concrete, masonry, stone, brick
• Recommended drilling mode: Rotary with hammer action
• Compatible tools: Rotary drills, hammer drills with 3-jaw chuck
• Standard compliance: DIN 8039
• Finish: Ground
• Packaging quantity: 1 piece

Our verdict

A reliable carbide-tipped drill bit for professionals and DIYers tackling concrete and masonry. The 7 mm size is a common choice for anchors and wall plugs, and the centering tip helps achieve accurate holes with minimal effort.