1, Our best impact masonry drill bit for extrerme requirements in concrete and natural stone. 2, Powerful. Durable. Convenient: The multi-talent for concrete and all natural stone types with superior performance. 3, Longest service life and excellent positiong behaviour. 4, 3-edged "Tri" shank (4-16mm diameter drill except 3mm diameter drill with cylinder shank)prevents slipping in the drill chuck. 5, A wide range of applications and perfect centring thanks to ground carbide plate and high-strength tip soldering. 6, Specially designed for challenging drilling, e.g., in concrete, granite, marble and vertically perforated bricks. 7, Extremely high speed thanks to optimal tip geometry and large-volume helix design. 8, Speciall treatment of the steel blanks ensures extreme performance characteristics and break resilience. 9, Can be used for hammer drilling and rotary drilling.
to drill holes in various concrete, sand stone, lime stone, brick, marble, granite, masonry building materials,etc.