Abstract: The invention relates to a sharpener for sharpening a cutting tool, such as a knife, the sharpener comprising a body part (1), a rotatable sharpening roll (2) resting on the body part, and a first guide groove (11) above the sharpening roll for receiving a first tool blade and for guiding it in relation to the sharpening roll (2). To allow the sharpener to be made structurally simple and well applicable for sharpening both narrow and wide blades, the sharpener comprises a second guide groove (14), which is wider than the first guide groove (11), to be arranged above the sharpening roll (2) to allow a second tool blade to be received and guided in relation to the sharpening roll (2).

Abstract: The invention relates to a tool, such as a saw or a knife, comprising a hollow handle and a blade member that is movable alternatively into a storage position or a position of use, in the storage position the blade member being surrounded by the handle and protected inside it and in the position of use the blade member protruding from the handle as an extension of the handle, the blade member being lockable by locking means in relation to the handle either into the storage position or the position of use. To improve the safety and properties of use of the tool, the end of the blade member in the direction of the handle comprises a hanger member for suspending the tool, the hanger member protruding from the handle when the blade member is in the storage position.

Abstract: A cutting blade includes a first and a second elongated frame part, and projections protruding from the first and the second elongated frame part in the cross direction. The first and the second frame part are attached to each other by blades, the blades being individually attached to the first frame part at first pivot points and to the second frame part at second pivot points so that the opposite ends of the blades protrude from the first and second pivot points, respectively, in the cross direction of the frame parts. The first and the second elongated frame part are movable relative to each other to rotate the blades around the first and second pivot points and to generate a cutting movement between each end of the blade and projection approaching each other.