Abstract: An extension device for a clamping and spreading device with a slide rail guided for displacement relative to a bearing device is suggested which has at least one contact element for a workpiece and is fixed or can be fixed in position so as to be non-translational in relation to the bearing device.

Abstract: In order to improve a clamp-type hand tool, comprising a first arm incorporating a corresponding jaw portion and a second arm incorporating a corresponding jaw portion wherein the two arms are pivotable relative to one another and the jaw portions form a jaw device having an adjustable aperture, in such a manner that it is employable in as universal a way as possible, it is proposed that the jaw portion of the first arm and/or the law portion of the second arm be displaceable on the corresponding arm.

Abstract: In order to provide a clamping and spreading device with a slide rail which is mounted for displacement and the displacement movement of which can be actuated in a clamping direction with blocking of the displaceability in the opposite direction and the displacement movement of which can be actuated in a spreading direction with blocking of the displaceability in the opposite direction, wherein the direction of displacement can be switched over between clamping direction and spreading direction, which can be produced in a simple manner and can be operated in a simple manner, a movable positioning element is suggested which supports actuating elements for the slide rail, wherein the displacement movement of the slide rail in the clamping direction or in the spreading direction can be actuated as a function of the position of the positioning element.

Abstract: In order to improve a clamp-type hand tool, comprising a first arm incorporating a jaw portion and a second arm incorporating a jaw portion wherein the two arms are pivotal relative to one another and the jaw portions form a jaw having an adjustable aperture, in such a manner that it is employable in as universal a way as possible, it is proposed that the jaw portion of the first arm and/or that of the second arm be displaceable on the appertaining arm.

Abstract: In order for run-through shears in the case of which the user's hand is located at a distance from the workpiece during cutting, comprising a shears head which is formed by a first shears-head limb with a first cutting blade and by a second shears-head limb with a second cutting blade, also comprising a first handle part and a second handle part, a first handle-part/shears-head-limb combination and a second handle-part/shears-head-limb combination being formed and at least one handle part being disposed in an angled manner relative to the shears head, and further comprising a rotary bearing for pivoting the handle-part/shears-head-limb combinations relative to one another, to be improved such that they can be produced cost-effectively and have a low weight, it is provided that the cutting blades are individual parts which are fixed on cutting-blade retaining regions of the associated shears-head limbs, and that the parts forming the cutting blades are spaced away from the rotary bearing.