Stanley SFMCCS630B With advanced battery technology, no memory effect and minimal self-discharge, the V20 Li-ion battery is always ready for use wherever you are - and for longer. 30 cm long guide bar and 7.7 m/s chain speed for fast and efficient cutting. The brake mechanism stops the chain in less than 1 second. An automatic lubrication system minimises manual maintenance. Tool-free chain tensioning system for quick and easy chain adjustment. Compact, well thought-out design. The integrated spirit level ensures precise, accurate and even cuts every time. Thanks to its compact design weighing just 2.6 kg, using the device reduces user fatigue. The integrated battery status indicator allows you to conveniently monitor the battery status. Integrated handle for safe storage - compatible with the STANLEY Track wall system - a versatile, flexible storage system for the home, garage or workshop. Part of the Stanley Fatmax V20 Cordless 18V system - Power all your V20 tools with the improved 18V Li-Ion battery that keeps you going with ease.