Abstract: An electrically driven hand-held tool including a housing (2; 12; 22; 32), an electromotor (20; 30; 40), a gear set for transmitting rotation of an output shaft of the electromotor to a drive spindle, and a fan-wheel all arranged in the housing (2; 12; 22; 32), with the fan-wheel providing, during operation of the tool, for aspiration of air through the suction openings (6; 16; 26; 36) formed in the housing for directing the aspirated air past the electromotor and the gear set for cooling same, and for expelling warm air, which was heated as a result of absorbing heat generated by the electromotor and the gear set during the operation of the tool, out of the housing (2; 12; 22; 32), and a warm air channel (7; 17; 27; 37) arranged downstream of the electromotor and the gear set and spaced from a tool handle (3; 13; 23; 33) and having a plurality of blow-out openings (8; 18; 28; 38) arranged in such a way that during use of the hand-held tool, the expelled warm air flows in a direction away from the tool operat

Abstract: A screw driving tool including an axially displaceable, drive spindle (5) located in the housing, a bit holder (6) having a shank (7) which releasably connects the bit holder (6) with the drive spindle (5), an axially adjustable depth stop (9) surrounding the bit holder (6) and a portion of the drive spindle (5) and connectable with the tool housing (1), and a sleeve-shaped dust-repelling member (13) arranged between the depth stop (9) and the bit holder (6) and releasably connected with the bit holder (6).

Abstract: A depth stop for a hand-held screw driving tool including a housing, a drive located in the housing for rotating a spindle about a spindle axis, and a chuck for receiving a working tool, connected with the housing and projecting from the housing in an axial direction defined by the spindle axis with the depth stop (3; 10; 16; 22) including a sleeve-shaped element for surrounding the chuck, connectable with the tool housing (2) and having at lease one axially extending opening formed in a wall of the sleeve-shaped element and piercing the wall through an entire wall thickness, and with the opening having, at its end remote from the housing (2) an entrance region (7; 21; 25) open in the axial direction.

Abstract: A handle assembly for a hand-held tool and including a handle (1) connectable with the tool housing and having a through-bore (4) for a cable (40) connecting the tool with a power source, a hook-shaped device (11) for suspending the tool and having an element for securing the suspending device on the cable (40) at any arbitrary position on the cable without a possibility of slippage of the suspending device along the cable, and a connection element adjoining the through-bore (4) of the handle (1) for connecting the suspending device (11) with the handle (1).

Abstract: An auxiliary handle is attachable by a band-shaped clamping member of a clamping device to a housing part of a hand tool such as a drill. A bearing part, supportable on the housing part, has alignable through openings for an axially extending depth stop. A U-shaped separate part is in engagement with the clamping member and has a through guide alignable with the through openings. When the clamping member is tightened on the housing part, it displaces the separate part transversely of the axis of the through opening for clamping the depth stop in the through openings.

Abstract: A hand-held tool for use as a powered drill or screw driver, has a chuck for holding a tool bit, and the chuck is replaceable without employing another tool. A conically shaped shaft section on a rotary spindle fits into a conically shaped bore in a socket section of a part of the chuck. The shaft section and chuck part are secured together by clamping members held in place by a spring. The interconnection affords concentricity and true runout. The rotary spindle is provided with a recess or groove in its outer surface. The groove has an inclined flank closer to the front end of the spindle and the clamping members is biased by the spring against the flank. The spring is displaceable by a gripping sleeve between the biasing position and a released position.