Variable Speed. Fein has improved its portable vacuums — or "dust extractors," as the company calls them — by adding variable speed control and two extra casters (for a total of six). An onboard receptacle triggers the machine when a connected tool is used and leaves it on for a short time afterward to clear the dust hose. Fein vacs still feature a two-stage design with a separate fan for cooling the motor. The most popular model, the 9-gallon Turbo II (shown), costs $396 without attachments. The accessory attachment kit costs about $100. Fein, 800/441-9878. www.feinus.com
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