The Faithfull 3 Piece SDS Square Drive Adaptor Set allows for the conversion of an SDS drill into a versatile tool for driving nuts, bolts, and coach bolts. This set includes three adaptors designed for common drive sizes of 1/4in, 3/8in, and 1/2in, facilitating efficient work when handling repetitive fastening tasks. The set is engineered to provide a practical solution for securing various hardware components. It is essential to use these adaptors exclusively with 2kg SDS fixing hammers that feature a hammer stop function. For safety and equipment longevity, these adaptors must be used in rotary mode only and are not compatible with percussion or hammer modes.