Craftsman 4 Amp Electric Trimmer 12inch. With this powerful string trimmer, you'll get the kind of power that leaves battery operated trimmers in the dust and the kind of convenience that keep gas powered weed whackers sitting in the shed. Designed for practically sized properties, this weed trimmer packs a powerful punch, drawing only the energy it needs to complete tough jobs without producing clouds of toxic smoke. Plug this string trimmer in and see how the 9,000 RPM operating speed produces enough velocity to slice through the densest stands of weeds, grass and overgrowth. Lightweight, without a battery or heavy engine to haul around, you move quickly, cord in tow, getting all your yard work done fast.