Abstract: An object of the present invention is to provide a replaceable-blade-type saw in which a handle fitting part can be insertably engaged in a guide member even if the width dimension of the handle fitting part is greater than the width dimension of the guide member. In a handle fitting part 3 of a saw blade 1 is formed a slit part 8, which is configured from a first slit part 6 formed inward from the side edge part of the handle fitting part 3, and a second slit part 7 formed as a continuation of the first slit part 6 as well as being formed toward the distal end side of the handle fitting part 3 from an inner end part 6A of the first slit part 6, and a slit outer-side part 9 positioned on the outer side of the slit part 8 of the handle fitting part 3 is elastically moved or elastically deformed inward by the slit part 8 when bearing external force exerted inward from the side-edge-part side.

Abstract: An assembly of saw handle and saw member is provided. An end portion of the saw member is inserted into an inserting groove of the saw handle. The saw handle has stopping bars at an inserting portion and a swing arm. The end portion defines an opened hole and a closed hole. When the swing arm is moved to an eject position and not received in a receiving space of a guard portion of the saw handle, the saw member is not blocked by the swing arm and is allowed to be inserted into the inserting groove. After the saw member is inserted into the inserting groove and the swing arm is moved to a fix position, the stopping bars are respectively located in the opened hole and the closed hole, so that the saw member can be assembled with the saw handle in a convenient and rapid manner.

Abstract: An assembly comprising first and second parts made of composite material held one against the other by at least one fastener system comprising a bolt having a flat head from which there extends a threaded portion, and a nut having a flat head from which there extends a shank including tapping suitable for co-operating with the threaded portion of the bolt. The head of the bolt bears against a countersink formed in the first part. The head of the nut bears against a countersink formed in the second part. The fastener system is suitable, during axial expansion of the fastener system, for causing each head to tilt towards the countersink in which it is housed.