The invention relates to a rock-drilling arrangement (10), comprising a drilling body (14) with a drilling-body-receiving adapter (12) for connection to a drilling machine, the drilling body (14) comprising a shaft (32) with an outer cone (44) and an external thread (56) axially connecting thereto, and the drilling-body-receiving adapter (12) comprises a corresponding inner cone (46) and an internal thread (54). The drilling body (14) is detachably mounted in the drilling-body-receiving adapter (12) for rotation therewith and comprises a hard metal element (34), on the front end thereof, for the transmission of percussive energy. The shaft (32) is embodied as a tube having at least one axially oriented suction opening that opens up into the drilling-body-receiving adapter (12). The cones (44, 46) are axially interlocked by the fastening of the threaded connection such that separation of the cone surfaces (44, 46) from each other during the restoring movement of the percussive tube is reliably prevented.