A curve saw mounted on an electric hand drill is a hardware tool, and is composed of a shell, a handgrip, a transmission system, a saw blade and a base.

手电钻用曲线锯头是一种五金工具，由壳体、手柄、传动系统以及锯条和底座构成。

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They, by contrast, never stop: Eight in the morning last Saturday a neighbor had a hired hand chopping up branches with an electric saw.

WSJ: Joe Queenan on the Sound of One Neighbor Misbehaving | Moving Targets

We saw a number of Electric Imp demos and appliance ideas at the booth including a simple hand-held "detonator" toggle switch with LED, seven-segment counter, water level sensor, servo-controlled gauge, RGB light, power socket, Christmas light, power monitor, toy washing machine, 16x16 LED display and receipt printer (the latter two being combined to show the avatars and tweets of anyone mentioning the Electric Imp) -- all Internet aware.

ENGADGET: Hands-on with the Electric Imp at Maker Faire (video)