The new GBL18V-71N blower from Bosch offers an ergonomic design and puts out 71 cfm. When used with the Bosch 622 6.0-Ah 18V battery or GSA18V 6.3-Ah Core18V battery, Bosch reports a runtime of 54 minutes at lowest speed. For other Ah configurations, Bosch offers this guidance for runtime: Five minutes per battery amp hour at high speed, 9 minutes per amp hour at low speed.
Each kit comes with a standard nozzle; a standard nozzle extension; a small-diameter nozzle, ideal for cleaning out small holes and cracks; and a debris-collection tube, which is designed to fit over the small nozzle for blowing out holes in concrete. The GBL18V-71N is designed for commercial and residential construction, landscapers, and remodelers. See the video below for a rundown of its features.
Cost: $79 (tool only).