1. High Strength and wear resistance steel plate adopted. 2. Suitable with all brands of excavators. 3. Strong compatibility. 4. Unique valve system. HMB series Hydraulic Breakers adopt simple hydraulic circuit system, which use oil less and improve efficiency more. 5. First-class quality: Korean technology used to guarantee the quality. 6.Powerful stroke. Compared with other brand's products, HMB series Hydraulic Breakers has more powerful stroke and reliable performances.