Abstract: A dust extraction shroud for a drill, which surrounds a drill bit and which lies adjacent the work surface, comprises a body portion defining a first inlet adapted to engage the work surface and to surround the location at which said bit penetrates the surface. The shroud body further defines a first outlet connected to a source of suction and a third inlet for allowing the bit to pass through said body portion. A first sealing means is arranged in said third inlet for surrounding said bit and resisting the flow of air. Wherein said body portion includes at least one protruding portion defining a second inlet between said protruding portion and an adjacent part of said body, and on a side of said protruding portion remote from the first inlet. The second inlet admits air to enter said body portion and travel to the first outlet.

Abstract: An electrically powered hand held drilling and/or hammering tool having a dust collection unit powered by a motor (51) housed in the unit, which unit can be releasably fitted to the tool. A plug arrangement (12) and a cooperating socket arrangement (28), one of which is formed on the tool and the other of which is formed on the unit, are provided for electrically connecting the power supply for the tool to the motor (51) of the unit. A first mechanical fixing arrangement is provided comprising a first projection (8) and a first cooperating recess (54), one of which is formed on the tool and the other of which is formed on the unit, located adjacent the respective part of the plug and socket arrangements and a second mechanical fixing arrangement is provided, located remotely from the first and comprising a manually actuable releasable latch arrangement (72,66) and a second cooperating recess (60), one of which is formed on the tool and the other of which is formed on the unit.

Abstract: A dust collection unit suitable for use with a hand held drilling and/or hammering tool, comprising a shroud (34) which is adapted to extend around a tool or bit (24) of such a hammering and/or drilling tool so as to collect dust in an airflow passing through the shroud which dust is generated by such a tool or bit. A tube like extension sleeve (28) extends forwardly from the shroud, with respect to such a tool or bit, which extension sleeve (28) is tapered at its forward end so as to have a forward rim which fits into a corner of a surface to be worked. A slideable sleeve (54) is slideably mounted on the extension sleeve so as to move between a retracted position in which the tapered forward rim of the extension sleeve (28) is engageable with a corner surface to be worked and an extended position in which a forward rim of the slideable sleeve (54) is engageable with a surface to be worked.

Abstract: A dust extraction shroud for a drill, which surrounds a drill bit and which lies adjacent the work surface, comprises a body portion defining a first inlet adapted to engage the work surface and to surround the location at which said bit penetrates the surface. The shroud body further defines a first outlet connected to a source of suction and a third inlet for allowing the bit to pass through said body portion. A first sealing means is arranged in said third inlet for surrounding said bit and resisting the flow of air. Wherein said body portion includes at least one protruding portion defining a second inlet between said protruding portion and an adjacent part of said body, and on a side of said protruding portion remote from the first inlet. The second inlet admits air to enter said body portion and travel to the first outlet.

Abstract: A battery-powered hand-guided power tool is provided, such as a hammer, includes a tool housing 3 that contains an electric motor M, a grip housing 2 and a rail-and-channel structure 36, 37, 54, 55 for releasable mounting of a rechargeable battery pack 50. The battery pack 50 is locked in an operative position on the housing 3 in which electrical contacts (51) of the battery pack 50 and associated electrical contacts 42 of the tool housing are electrically connected along a contact length extending in a longitudinal direction of the rail-and-channel arrangement. A latch structure 18,19 located on the tool housing 3 is movable between a latched position and a release position. When the latch structure 18,19 is moved from the latched position into the release position, the battery pack 50 can be moved in the direction of the longitudinal extent of the rail-and-channel structure 36, 37, 54, 55 out of the operative position and can be removed from the tool housing 3.

Abstract: A battery-powered hand-guided power tool is provided, such as a hammer, includes a tool housing 3 that contains an electric motor M, a grip housing 2 and a rail-and-channel structure 36, 37, 54, 55 for releasable mounting of a rechargeable battery pack 50. The battery pack 50 is locked in an operative position on the housing 3 in which electrical contacts (51) of the battery pack 50 and associated electrical contacts 42 of the tool housing are electrically connected along a contact length extending in a longitudinal direction of the rail-and-channel arrangement. A latch structure 18,19 located on the tool housing 3 is movable between a latched position and a release position. When the latch structure 18,19 is moved from the latched position into the release position, the battery pack 50 can be moved in the direction of the longitudinal extent of the rail-and-channel structure 36, 37, 54, 55 out of the operative position and can be removed from the tool housing 3.

Abstract: A battery-powered hand-guided power tool is provided, such as a hammer, includes a tool housing 3 that contains an electric motor M, a grip housing 2 and a rail-and-channel structure 36,37,54,55 for releasable mounting of a rechargeable battery pack 50. The battery pack 50 is locked in an operative position on the housing 3 in which electrical contacts (51) of the battery pack 50 and associated electrical contacts 42 of the tool housing are electrically connected along a contact length extending in a longitudinal direction of the rail-and-channel arrangement. A latch structure 18,19 located on the tool housing 3 is movable between a latched position and a release position. When the latch structure 18,19 is moved from the latched position into the release position, the battery pack 50 can be moved in the direction of the longitudinal extent of the rail-and-channel structure 36,37,54,55 out of the operative position and can be removed from the tool housing 3.