1.5 pack of sds plus masonry drill bits which size：5/8"*12" . These drill bits are the perfect addition to any handyman's toolkit, both for diy projects and professional use 2.Carbide-tipped for hard materials, these masonry bits are ideal for drilling tough, dense materials such as concrete, brick, and stucco 3. Designed with an sds plus shaft, these bits are compatible with a range of rotary hammer drills,(please note: Will not work in standard chuck) 4. Keep your bits organized and safe with the included rust-free plastic case, designed to help prolong their longevity and ensure easy storage 5. Featuring a patented four-cutter tip design, these bits provide optimal performance with fast drilling, efficient dust transport and minimal clogging, making them a reliable choice for any drilling project