PACKAGE- 7pcs SDS-Plus hammer drill bit set with strong plastic box, which is durable for easy storage and is portable for all job environments 9 Pack 3/16 - 5/8 Masonry Drill Bit Set, 3/8 Inch Jamaica Sds Masonry Drill Bits Ironton Rotary Hammer Drill - 7.6 Amps | Northern Tool PGM Certified Drill Bits Feature - 4 head cutters with carbide hammer drill, automatic welding, high cutting performance, hardness and durability Application - Widely used for reinforced concrete, unreinforced concrete, masonry, bricks, lightweight blocks, construction granite, natural stone and other construction materials USE TIPS- Sharpened cutting tools can be dangerous, please always wear safety goggles in work area at all time Tackle tough drilling jobs with this 7-piece SDS Plus hammer drill bit set from NORTOOLS. Each bit features a high-quality tungsten carbide tip with two head-cutters for fast, clean drilling in masonry, brick, reinforced concrete, lightweight blocks, and natural stone APPLICABLE- Widely used for reinforced concrete, Non-reinforced concrete, masonry, bricks, lightweight block,constructional granite, natural stone and other construction materials