The SANDO unbreakable handle sledge hammer was developed in 1975 to withstand the rigorous hard rock mining conditions in South Africa. Since then the SANDO brand has expanded to include a range of unbreakable striking tools that have sold in excess of 6 million units worldwide. The handle is made of a series of high tensile spring steel rods around which is moulded, under a high compression factor, very strong and abrasive-resistant rubber.,The SANDO unbreakable handle sledge hammer was developed in 1975 to withstand the rigorous hard