Abstract: A tool holder for a hand-guided drilling device, in particular for a rotary hammer, includes a receiving sleeve that is designed as a single piece and that is drivable in a rotating manner for a shank part of an insertion tool. The recess is open at both end faces and limited therebetween by an inner circumferential surface of the receiving sleeve. The inner circumferential surface (62) of the receiving sleeve (34) includes at least six flat circumferential surface sections (62n through 62u; 84, 86) in the circumferential direction, with adjacent circumferential surface sections (62n, 620; 62p, 62q; 62r 62s; 62t, 62u) forming an angle of 120 degrees.

Abstract: A tool holder for a hand-guided drilling device, in particular for a rotary hammer, includes a receiving sleeve that is designed as a single piece in particular and that is drivable in a rotating manner for a shank part of an insertion tool. The recess is open at both end faces and limited therebetween by an inner circumferential surface of the receiving sleeve. The inner circumferential surface (62) of the receiving sleeve (34) includes at least six flat circumferential surface sections (62n through 62u; 84, 86) in the circumferential direction, with adjacent circumferential surface sections (62n, 62o; 62p, 62q; 62r 62s; 62t, 62u) forming an angle of 120 degrees.

Abstract: The invention relates to a tool holder for a hand-held drill, especially a hammer drill. Said tool holder comprises an especially one-piece, rotatably driven accommodating cylinder (34) with a recess (60) for a shank part of an insertable tool, said recess (60) being open on both front ends and being defined in between by an inner peripheral surface (62) of the accommodating cylinder (34). The inner peripheral surface (62) of the accommodating cylinder (34) has at least six planar peripheral sections (62n to 62u) in the peripheral direction, adjacent peripheral sections (62n, 62o; 62p, 62q; 62r 62s; 62t, 62u) forming respective angles of 120 degrees between them.

Abstract: An electric hand power tool has a housing, an air-cooled electric motor which is accommodated in the housing, a tool which is driven by the electric motor a protective hood which at least partially covers the tool, the housing having a handle and an auxiliary handle for a two-hand guidance of the hand power tool, the auxiliary handle being positioned in a plane transverse to a plane of the first-mentioned handle and, with reference to a work direction, before the first-mentioned handle, the auxiliary handle being completely hollow and having an inlet communicating with the protective hood so as to carry motor cooling air which has left the housing and passed the protective hood for the tool and then flows into the inlet of the auxiliary handle carrying debris and through the auxiliary handle and out of the latter, so that the auxiliary handle is operative for damping a flow noise of the air from the electric motor, from a motor-cooling fan and from the tool.

Abstract: An electric hand power tool has a housing, a rotatably driven tool, a protective hood which at least partially covers the tool, a handle and an auxiliary handle for a two-hand guidance of the power tool, the auxiliary handle being hollow and formed as a withdrawal passage for a removed material thrown from the rotatably driven tool, the auxiliary handle having an inlet which is formed so that a radiating direction of the removed material from the rotatably driven tool is substantially tangential to a workpiece periphery in an inlet of the auxiliary handle, the inlet of the auxiliary handle being formed so that an inflow direction of the motor spent air coincides with the radiating direction of the removed material from the tool, and an air-cooled electric motor which drives the tool and is accommodated in the housing, the housing having an air passage provided with an air inlet opening for a motor spent air, the air passage being screw-shaped in direction of the motor spent air, which is directed in an opposi

Abstract: An electric hand power tool has a housing, an air-cooled electric motor which is accommodated in the housing, a tool which is driven by the electric motor a protective hood which at least partially covers the tool, the housing having a handle and an auxiliary handle for a two-hand guidance of the hand power tool, the auxiliary handle being positioned in a plane transverse to a plane of the first-mentioned handle and, with reference to a work direction, before the first-mentioned handle, the auxiliary handle being completely hollow and having an inlet communicating with the protective hood so as to carry motor cooling air which has left the housing and passed the protective hood for the tool and then flows into the inlet of the auxiliary handle carrying debris and through the auxiliary handle and out of the latter, so that the auxiliary handle is operative for damping a flow noise of the air from the electric motor, from a motor-cooling fan and from the tool.

Abstract: An electric hand power tool has a machine, an air-cooled electric motor which is accommodated in the housing, a tool which is driven by the electric motor, a handle and an auxiliary handle for a two-hand guidance of the power tool, the auxiliary handle being hollow and formed as an air channel for spent air leaving the electric motor.

Abstract: An electric hand power tool has a housing, a rotatably driven tool, a protective hood which at least partially covers the tool, a handle and an auxiliary handle for a two-hand guidance of the power tool, wherein the auxiliary handle is hollow and formed as a withdrawal passage for a removed material thrown from the rotatably driven tool.

Abstract: In a hand-held electrical grinder with a tool holder (22) driven by a rotating eccentric plug (20) which, for receiving a grinding tool has a quick-action locking device (24) with locking elements (40, 41) fixed on the tool and tool holder sides and corresponding with each other, the locking elements (40) on the tool side are formed, on the one hand, by hooks (42) disposed on a circular line and, on the other hand, the locking elements (41) on the holder side are realized by means of a spring wire (43), which is bent in the shape of a ring, in order to transmit a greater output from the tool holder (22) to the (10). The spring wire (43) has a number of radially inward directed indentations (431) corresponding to the number of the hooks (42) on the tool side, which extend behind the hooks (42) on the tool side for locking the grinding tool (10) in.

Abstract: In a hand-held orbital sander with a housing (12) and with a sanding tool (10) received in a tool holder (22), which is seated by means of a pivot bearing (21) on a rotating eccentric journal (20) protruding from the housing (12), an oscillating device (23), having an inner ring (26), an outer ring (27) and a formed part (28) made of elastic material connecting the two with each other is provided as a security against relative rotation, wherein the inner ring (26) is fastened on the tool holder (22) coaxially with the pivot bearing (21), and the outer ring (27) is maintained, fixed against relative totation, in the housing (12). The oscillating device (23) provides a symmetrical force distribution and makes it possible to set the torque of the tool holder (22) with the sanding tool (10) as needed in respect to the hardness or thickness of the elastic formed part (28) (FIG. 1).

Abstract: An electric hand plane has a wedge-shaped body having a lower wedge surface adapted to rest on a workpiece and an upper wedge surface, a plane housing supported on the upper wedge surface of the wedge-shaped body and having a counter-surface, a device for producing a clamping force between the upper wedge surface of the wedge-shaped body and the counter-surface of the housing, and a single handle operative for cancelling the clamping force during an adjustment and also for displacement of the wedge-shaped body, and a gear mechanism means arranged so that the handle displaces the wedge-shaped body relative to the plane housing via the gear mechanism means by rotation.

Abstract: A hand planer comprises a housing, a planer head supported in the housing, a motor driving the planer head, a fan blower connected with the motor for generating a flow of air for moving chips, a chip ejector, two air guidance ducts through which the flow of air is guided from the fan blower to the chip ejector, a chip conveying duct having a chip discharge opening such that planed chips exit the chip conveying duct through the chip discharge opening, the chip ejector accommodating both the chips and the flow of air, and guides for guiding the flow of air in a switchable manner to the chip conveying duct via one of the two air guidance ducts. Therefore the problem of ejecting the chips in a preselected direction with extreme precision and high efficiency is met.

Abstract: A hand-operated planer has a rotating blade holder having a base body, at least one planing blade and a pressing plate which presses the at least one planing blade against the base body, the pressing plate having one side which presses the planing blade against the base body and another side which is formed differently from the one side so that when the pressing plate is reversed the another side can press another planing blade which is different from the planing blade against the base body.