Daggers are more expertly used by DDs. (DD stands for Demolition Dash, a chain expertise one unlocks. One who utilizes the move is called a DD in game.) A DD can achieve a 5% boost using daggers.
Due to "interesting" translations, "daggers" are simply labeled as "Thrusting Sword"s. Whether or not a 1-h sword can be used with the same benefits as a Thrusting Sword is unknown.