To improve productivity by removing cutting chips automatically for labor and time saving.

A product carrying-out device 25 which forms this product cutting chips dropping device 23 is mounted on the product carrying-out side of a hand saw, and a product Ws is carried out by the rotation of a spiral roll 27 fitted on the product carrying-out device 25 and is stored in a product bucket 37. At this time, coolant is injected over the product Ws by an injection device 29 fitted above the product carrying-out device 25 to drop cutting chips gathered between the products, and the product Ws is cleaned by air injection. The cutting chips and coolant dropped by injection are stored in a tank 35 mounted under the product carrying-out device 25, and the products are stored in the product bucket 37. It is thus possible to drop cutting chips automatically for improved productivity without need for much labor and time.