To provide a tool polishing device which fixes a tool even if the tool is small, and sharpening a worn-out tool.
A tool polishing device 1 is provided with a tool 3 supported by a tool mounting stand 2, and a whetstone 4 provided facing the tool 3, and by horizontally moving any one of the tool mounting stand 2 and the whetstone 4, and by bringing the tool 3 in contact with the whetstone 4, the tool 3 is sharpened, wherein an engagement unit 32a is provided on the surface of the tool mounting stand 2, and a tool holder member 6 is brought in contact with the surface of the tool 3 that carries out inter-engagement of an engaging part 31 with an engagement unit 32a, and the tool holder member 6 is fixed to the cutter mounting stand 2 by a fixed member 7.
Ichiro Irie
Juichi Nosue