Makita B-47444 7mm x 160mm SDS+ Drill Bit has a patented, high-volume, multi-flute that quickly channels the driling dust away from the hole, saving both time & money. The aggressive design together with the fast and durable carbide tip allows easy centering and spot drilling, the reinforced flute and self-centering tip design provides fast and accurate drilling in concrete. Designed for regular professional use, providing excellent performance in the toughest of materials. Also excellent for drilling in high-resistance materials such as Green Concrete or Engineering Brick. Ideal for all rotary hammers with SDS+ holder, suitable for concrete, masonry, brick, anchors, fixings, hard concrete, green concrete, engineering brick.