5.0HP gasoline engine 800mm/30in trowel diameter runs 2 hours at full load power trowel speed range 50-100 rpm, adjustable Overview:Power trowel with 5HP gasoline engine is great for use on big jobs like parking lots, driveways, concrete patios and more. Specifications:ModelST-30ATrowel diameter (mm)800Number of blades4Driving Speed(rpm)50~100Blade Dimension (mm)265*150Engine modelS20 5. ...