Makita's 40V MAX XGT Brushless 16 in. Chain Saw (GCU05) is a welcome cordless solution with zero emissions, lower noise, and considerably less maintenance than gas-powered chain saws. The efficient Makita-built brushless motor delivers high power efficiency equivalent to a 42cc gas chain saw, with a variable-speed trigger delivering 0-5,020 FPM. Convenience features include lateral chain tensioning with dual stud, captured bar nuts, adjustable automatic chain lubrication with large oil reservoir, and a built-in L.E.D. on/off switch with auto power-off. This kit includes two 40V MAX XGT 5.0Ah batteries and a rapid charger.