Rawlplug Masonry Drill Bits Impactor 6X150 Specially sharpened carbide plate allows for quick and cylindrical drilling Very deep seating of carbide plate significantly improves connection with the drill core, which affects quality High-quality carbide plate increases the quality of drilled holes and reduces by 20% battery power while drilling hammer cordless drill Heat treated, which increases the hardness of the steel to 52 HRC for optimal resistance during operation Extremely high quality, cylindricity and axial alignment of drilled holes, confirmed by international SicherSafe certificate Due to geographical locations we are unable to deliver to: Isle of Wight, Isle of Man and Ireland.