Worx JawSaw WG320 cordless chainsaw. It has a unique guard that completely covers the chain when you're not working, the blade hides inside. This is the only chainsaw that you can see right on the ground. The JawSaw can easily handle branches up to 4 inches in diameter. It runs on a 20 volt battery that fits over 75 other Worx tools. You buy one battery, use it in everything. There is an automatic chain tensioning system, you don't have to constantly check and adjust it - the saw itself maintains the optimum tension. You don't have to worry about lubrication either, the JawSaw has an automatic chain lubrication system with an oil level indicator, this extends the life of the saw and makes the cut smoother. It weighs only 7.1 pounds without the battery. Lastly about the speed - 1350 rpm make it one of the fastest in its class. You'll be sawing like a pro!