Abstract: The two straight line segments respectively constituting the intersection of the holding plane, on the one hand, the cutting plane, on the other hand, and the plane containing the median axis of the members forming handles and perpendicular to the holding plane define between them a lateral inclination angle. Further, the projection of a median axis of the cutting edges onto the holding plane defines with the median axis of the members forming handles an angle of inclination in the holding plane.

Abstract: A bolt-cutter type cutting tool has two blade supports each mounted to pivot about a respective pin carried by at least one spacer member of the tool and each having at the free end of its inside edge a removable cutting blade. Each blade support comprises two parallel support members fastened to each other and between which is disposed a central spacer member carrying the pivot pins.

Abstract: A device for assembling and locking two tubes has a radially symmetrical central member having a cylindrical screwthread on a front part and a cylindrical peg at the rear. The latter is inserted in a first tube. The front part is covered by two half-shells with a cylindrical outside wall, bearing on each other along a rectilinear ramp surface. One of the half-shells is unable to move in translation. The other is entrained in translation by the screwthread when the tube is rotated, which tends to move the two half-shells away from the central member, although they remain parallel to each other, until they come into contact with the inside wall of the second tube. The contact surface is cylindrical. The invention is useful, for example, in manufacture of telescopic rods.