This 3-piece SDS drill bit set from Amtech is designed for heavy-duty use on concrete, masonry, lightweight block, and stone. The bits feature a sandblasted finish and are carbide tipped for durability. Manufactured from heat-treated hardened steel, they are compatible with power drills fitted with an SDS or SDS+ chuck. The set includes three bits with sizes 12mm, 16mm, and 24mm, all with an extra-long 600mm reach. Please note that special delivery terms and conditions may apply due to the size and weight of this item.