Choosing the right depends on three primary factors: your experience level, the type of wood you’ll be cutting, and the frequency of use. STIHL categorizes its lineup into Homeowner (Occasional), Farm & Ranch (Mid-range), and Professional models to help users match power to the task. 1. Understand the Model Series The prefix of every STIHL model tells you its power source: MS (Motorsäge): Gasoline-powered chainsaws. MSA: Battery-powered, cordless models. MSE: Corded electric models for use near power outlets. 2. Choose Your Class Based on Use Chainsaw Buying Guide - STIHL