The object of the present invention is to provide an angle setting tool for setting the blade section of a hand scaler at a predetermined angle during sharpening of the scaler, and a hand scaler sharpening device which has a relatively simple structure, is easy to operate and do maintenance, and reduces complexity in the sharpening operation. This object is achieved by a hand scaler sharpening device including a sharpener main body having a grind stone ( 50 ) provided for reciprocating motion, and an angle setting tool ( 41 ) for setting the tip of a hand scaler at one of a plurality of predetermined angles on the grind stone ( 50 ), wherein the angle setting tool ( 41 ) has a plurality of inclined surfaces ( 42 a, 43 a, 44 a) corresponding to the predetermined angles.
