MD4 DTH hammers by Mindrill are designed to minimize energy losses to create a strong impact, resulting in good rock breakage and optimal hole quality. The Mindrill M4 hammer is optimal for cutting through abrasive and hard rocks at 10-24 bars of pressure. Its advanced shank design ensures maximum energy transmissibility. The hammer comes with heavy-duty/reversible castings for longevity and fast drilling. Key Features: Optimal for hard and abrasive rocks Heavy-duty or reversible casting for long life Advanced shank design for maximum energy efficiency High penetration rate Low running and maintenance costs