PROBLEM TO BE SOLVED: To provide an extension handle for a rechargeable hand-held electric power tool allowing an easy attachment work to the electric tool.SOLUTION: An extension handle 70 is detachably attached to a rechargeable hand-held electric power tool in which a tool body 1 includes a battery attachment part 13 to which a rechargeable battery pack can be detachably attached, and comprises a sliding attachment part 80 to be detachably attached in a sliding manner to the battery attachment part 13 in a state of having the battery pack removed, wherein the battery attachment part 13 is configured to have the battery pack attached/detached by sliding along a planar body side connection surface.SELECTED DRAWING: Figure 7【課題】電動工具への取り付け作業が容易な手持ち式の充電式電動工具用の延長ハンドルを提供する。【解決手段】充電式のバッテリパックが着脱自在に取り付けられるバッテリ取付部１３を工具本体１に備えた手持ち式の充電式電動工具に、着脱自在に取り付けられる延長ハンドル７０であって、バッテリ取付部１３は、平面からなる本体側接続面に沿ってバッテリパックをスライドさせて着脱する構成であり、バッテリパックを取り外した状態のバッテリ取付部１３に着脱自在にスライド装着されるスライド装着部８０を備えている。【選択図】図７
