The Best String Trimmers

Power Source and Performance

The choice of power source significantly impacts a string trimmer's utility. Corded electric models, like the BLACK+DECKER BESTA510, offer consistent power without the need for battery charging or fuel mixing, making them ideal for smaller yards where an outlet is accessible. However, their range is limited by cord length. Cordless battery-powered trimmers, such as the BLACK+DECKER LST300 or DEWALT DCST922B, provide unrestricted mobility, which is invaluable for larger properties or areas far from power sources. Users typically find that higher voltage batteries (e.g., 20V MAX* XR) and larger amp-hour ratings translate to longer runtimes and more sustained power for tougher tasks. Gas-powered units, exemplified by the Generic 2-Stroke 25 CC Power Head, are generally the most powerful, capable of tackling dense weeds and brush with ease, and are often preferred for commercial use or very large, challenging landscapes. Their full crank engines are known for 2X longer life in practice, but they require fuel mixing and more maintenance.

Line Feed Mechanism and Cutting Efficiency

The method by which the trimmer line is advanced directly affects user convenience and workflow. Many modern trimmers, including the BLACK+DECKER BESTA510 and LST300, feature an Automatic Feed Spool (AFS) technology, which eliminates the need for bumping the head to advance the line, resulting in hassle-free operation. WORX models, like the WG163, innovate with a push-button Command Feed system for instant line feeding, which some users find even more intuitive. In contrast, older or simpler models might require manual pulling or bumping. The cutting swath, such as the 14-inch area offered by the DEWALT DCST922B, determines how much area is cleared with each pass; a wider swath generally means faster work on open stretches, while a narrower one might offer more precision in tight spots.

Versatility and Ergonomics

Many string trimmers are designed for more than just trimming. The 2-in-1 trimmer/edger functionality, common in models from BLACK+DECKER (BESTA510, LST300) and WORX (WG163), allows for quick conversion between tasks, often with a wheeled edge guide for cleaner lines. This versatility is a key consideration for homeowners wanting a single tool for multiple lawn care needs. Ergonomic features also play a significant role in user comfort and fatigue. Lightweight designs, like the BLACK+DECKER BESTA510, and reduced vibration systems, as found in the BLACK+DECKER LST300, contribute to a more comfortable user experience during extended periods of use. For storage and transportation, features like the folding hinge on the DEWALT DCST922B can be particularly beneficial, allowing the tool to fit into smaller spaces.

Underestimating Power Requirements for Tough Tasks

A common error is selecting a trimmer with insufficient power for the intended use. For instance, relying on a lightweight electric model like the BLACK+DECKER BESTA510's 6.5-amp motor for dense, overgrown brush might lead to bogging down and frustration. For heavy-duty clearing or prolonged use, a gas-powered unit with a full crank engine, such as the Generic 2-Stroke 25 CC, typically provides the sustained power needed for more challenging vegetation.

Ignoring the Importance of Line Feed Mechanism

Users often overlook the line feed system until they are constantly stopping to adjust the line. Choosing a model without an automatic feed spool, like those found in BLACK+DECKER trimmers (BESTA510, LST300), or a push-button Command Feed system (WORX WG163), can lead to frequent interruptions for manual line advancement. This can significantly slow down work and become a source of annoyance.

Overlooking Tool-Only Purchases for Cordless Models

Purchasing a cordless string trimmer listed as 'tool only,' such as the DEWALT DCST922B, without realizing that batteries and chargers are separate purchases, is a frequent mistake. This oversight can lead to unexpected additional costs and delays in using the tool, as the necessary power components are not included in the initial package.

Neglecting Storage and Transport Considerations

Another mistake is not considering how the trimmer will be stored or transported. A large, rigid trimmer can be cumbersome in small sheds or vehicle trunks. Models featuring a folding hinge, like the DEWALT DCST922B, are specifically designed to address this, reducing their length for easy storage and transportation. Failing to account for this can result in storage challenges.