Boring machines; Drill bits for rock drilling; Drilling machines; Drilling machines and parts therefor; Drilling rigs; Drills for the mining industry; Bits for power drills; Cemented carbide cutting tools; Cemented carbide tips; Pneumatic piercing machinery and auxiliary supportive devices used in the installation or replacement of utility pipe lines, cable lines, pipe tunnels and underground utility systems; Polycrystalline diamond compact (PDC) drill bits for drilling machines; Power-opera...