GH10 Hydraulic Hammer; GH12 Hydraulic Hammer; GH15 Hydraulic Hammer; GH18 Hydraulic Hammer; GH23 Hydraulic Hammer; GH30 Hydraulic Hammer; GH40 Hydraulic Hammer; GH50 Hydraulic Hammer; Discontinued Models. GH Series. GH06 Hydraulic Hammer; GH07 Hydraulic Hammer; GH1 Hydraulic Hammer; GH2 Hydraulic Hammer; GH3 Hydraulic Hammer; GH4 Hydraulic ...