MARSHALLTOWN Power Trowels make it even easier to achieve flatter, more professional-looking concrete surfaces faster and easier. The Knob style offers you an infinitely variable amount of fine tuning to position the blades exactly where you want them. This machine comes equipped with features such as a convenient service door for easy maintenance, a centrifugal safety switch, lifting hooks for easy transportation, and a dependable gearbox design that maximizes torque transfer. Every Power Trowel comes with four complementary Combination blades. Our walk-behind Power Trowels are Made in the USA with Global Materials.