Abstract: A deburring tool includes: a body; and a cutting unit provided on an end portion of the body and including a blade part, where a first channel is provided inside the body, and when a fluid supplied from outside of the deburring tool through the first channel is injected into the cutting unit and presses the cutting unit, the cutting unit moves and a degree to which the blade part protrudes outwardly increases.

Abstract: A deburring tool includes: a body; and a cutting unit provided on an end portion of the body and including a blade part, where a first channel is provided inside the body, and when a fluid supplied from outside of the deburring tool through the first channel is injected into the cutting unit and presses the cutting unit, the cutting unit moves and a degree to which the blade part protrudes outwardly increases.

Abstract: A magenta color - forming coupler represented by the formula (1) for use in color photographic silver halide photosensitive material: ##STR1## wherein X is halogen; l is 0, 1, 2, or 3; Y is hydrogen or halogen; Q is --NH-- or --NHCO--; n is 1, 2, or 3; K is O, S, or SO.sub.2 ; A is ##STR2## or ##STR3## in which R.sup.1 represents C.sub.1 -C.sub.8 alkylene or phenylene, R.sup.2 represents C.sub.1`-C.sub.4 alkylene or phenylene and q is 1, 2, or 3; R.sup.3 is C.sub.1 -C.sub.8 alkylene; R.sup.4 is C.sub.1 -C.sub.8 alkyl; and m is an integer of 0, 1, or 2, provided that a plurality of R.sup.4 are the same or different each other when m is 2, and a photographic photosensitive material containing the magenta coupler above.