Flexvolt 60V Max Chainsaw features a low kick back 16 In. Oregon bar and chain for both construction and outdoor cutting applications. High efficiency brushless motor. Flexvolt 9Ah capacity when used with 20V Max tools. Tool-free chain tensioning and bar tightening knob enable proper bar clamping force, and features auto-oiling for continuous lubrication. Chain brake for kick back protection. 3/8 In. chain pitch with 56 drive links. Up to 70 cuts on 6 In. x 6 In. per charge.Includes: 60V Max 3Ah lithium ion battery (acts as 9Ah when used with 20V tool), charger, and hard bar cover. 3 year warranty.