What Is a Reel Mower? | The Clean-Cut Manual Classic

A reel mower cuts grass with a spinning cylinder of blades against a fixed bed knife, producing a scissor-like snip instead of a rotary mower’s chop.

If you’ve ever wondered what is a reel mower and whether this old-school tool deserves a spot in your shed, the short answer is yes—if your lawn is smooth and even. Unlike the typical gas or electric mowers with a single horizontal blade spinning at high speed, a reel mower works like a giant pair of scissors rolling across your yard. The classic version is human-powered: you push, the wheels turn the reel, and the blades shear the grass cleanly. This design delivers a cut so precise that golf courses and sports fields rely on the same principle, scaled up with engines and hydraulics.

Reel mowers are quiet, emission-free, and need no fuel, oil changes, or extension cords. But they have real limits, and knowing them before you buy saves frustration. Let’s break down how they work, what models exist, and whether one fits your lawn.

How a Reel Mower Cuts Grass

A reel mower’s cutting action is fundamentally different from a rotary mower’s. A rotary mower uses one horizontal blade spinning fast enough to chop grass against a deck. A reel mower uses a horizontally rotating cylinder—the reel—with blades arranged in a helix. As the reel spins, each blade passes a stationary cutter bar called the bed knife. The grass is caught between the two and snipped cleanly, like scissors.

That scissor action is why reel mowers are famous for leaving a cleaner cut. The grass blade is severed cleanly rather than torn, which reduces browning at the tips and keeps the lawn looking healthier. The tradeoff is that the mower must be pushed hard enough to keep the reel spinning, and the cut height must be relatively low.

According to the University of California’s Integrated Pest Management program, reel mowers are best suited for fine-textured turfgrasses and situations where a low mowing height is desirable. They perform well on smooth, even surfaces, and less so on rough or bumpy ground.

Types of Reel Mowers: Manual, Gas, and Battery

The classic reel mower is the manual push type—no motor at all. But the term also covers powered versions, and knowing the difference matters when shopping.

• Manual push reel mowers: The most common and affordable type. You supply the power, so they’re completely silent and emission-free. They suit small, flat, fine-bladed lawns.
• Gas-powered reel mowers: These use a small engine to drive the reel, removing the push effort. Many are self-propelled. They’re heavier and pricier but handle bigger areas.
• Battery-powered reel mowers: A growing middle-ground category. The motor spins the reel, so you just steer. They’re quiet and clean, but the battery adds weight.

For an in-depth look at the best battery-powered reel mower options, we’ve tested the top models in our battery-powered reel mower roundup—it covers the pros, cons, and what actually mows well.

Specs and Features: What to Look For

Reel mower specs revolve around three numbers: blade count, cutting width, and cutting height range. More blades generally mean a finer, cleaner cut because each pass snips the grass in smaller increments. Consumer manual models typically have 4, 5, 7, or 11 blades, with 4-blade entry-level units and higher counts for finish-grade results.

Cutting width for consumer push models usually spans 14 to 20 inches. Wider decks cut faster but require more push effort. Cutting height is critical because reel mowers operate best at low heights—most consumer models adjust between roughly 0.5 and 2.75 inches. You won’t convert a reel mower into a rough-cut brush hog.

Maintenance, Limits, and Who Should Buy One

Reel mowers demand more upkeep than a rotary mower. The blade-to-bedknife gap is everything: if it’s too wide, grass bends and tears; too tight, the mower drags and takes more effort to push. Lowe’s guidance is to keep the mower clean, adjust the blade gap, and sharpen the reel and bedknife as needed. On commercial units, back-lapping—a maintenance procedure that grinds the reel against the bedknife with an abrasive compound—keeps the cutting edges true. It’s standard equipment on the Ventrac mR740.

Sharpening a manual reel mower’s blades is more involved than touching up a rotary blade. Many owners use a reel mower sharpening kit, or simply replace the reel assembly when it wears out. If that maintenance sounds like a burden, a reel mower probably isn’t for you.

Who should buy one? Homeowners with small, flat, fine-bladed lawns who want a quiet, zero-emission mow and enjoy a precise cut. Who shouldn’t? Anyone with a large, bumpy, or rough yard, or who’s used to bagging heavy clippings—most reel mowers mulch lightly or leave clippings where they fall.