WORX Nitro 40V Chainsaw

a close up of a man riding a bike down a dirt road

The new WORX Nitro 40V, 16 in. Chainsaw harnesses the performance and run-time of dual, 20V, 4.0Ah Power Share PRO batteries, plus a high-efficiency, maintenance-free brushless motor.  

WORX said this is the fastest-cutting cordless chainsaw it has offered to date.  

The power-packed chainsaw provides gas-like performance to cut timbers up to 30 inches in diameter.  Its 16-in. bar has a reduced-kickback chain with a 3/8 in. pitch and a high-speed cut rate of 59 ft./sec. to deliver professional-grade efficiency and results. 

The included Power Share PRO intelligent batteries feature cell-cooling technology that enhances tool performance and extends run times. 

Each battery cell is wrapped in thermoplastic to dissipate heat, provide impact resistance and maximize power.  Power Share PRO batteries are compatible with all WORX 20V and 40V lawn and garden, DIY, and lifestyle products. 

Remaining battery runtime can be quickly checked by pressing the onboard battery indicator. The chainsaw comes with a 4-amp, dual-port charger that brings both batteries to a full charge in 2 hours

The 40V Nitro chainsaw is equipped with an efficient and dependable brushless motor.  The brushless motor runs cooler with less friction and heat buildup than conventional motors with brushes, resulting in smooth, reliable operation and extended tool life. 

The Nitro chainsaw also provides a full complement of exclusive WORX features, including tool-less chain tensioning and automatic chain lubrication. 

Merely turning the large dial on the side of the saw sets the proper chain tension to prevent over-tightening.  

An automatic chain lubrication system includes a reservoir with an oil-level indicator, showing when a refill is needed.  The reservoir’s capacity is 4.5 ounces. Constant lubrication is provided to both the bar and chain throughout operation.

The chainsaw’s 16-in. bar has a reduced-kickback chain. If kickback does occur, a quick-stop chain brake stops the chain’s rotation immediately.  The brake also helps prevent accidental cutting and allows the operator to stop the chain immediately before setting down the saw or moving to another location.

The brake’s handle is designed for easy activation, whether the saw is held vertically or horizontally. 

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