Rockwell RC2840K2 information from Consumer Reports

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Rockwell RC2840K2

Price range:

$86.67 - $124.02

Summary: This 18-volt model from Rockwell has a 1/2-inch chuck and two speed ranges. It comes with two NiCd batteries and a smart charger.

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Type: General use drill/drivers

About - Rockwell RC2840K2
The Rockwell RC2840K2 is part of the cordless drill & tool kit test program at Consumer Reports. In our lab tests, cordless drill models like the RC2840K2 are rated on multiple criteria, such as those listed below. Speed: Speed of drilling and driving screws. Power: Twisting force for tightening and loosening. Run time: This reflects how much work the drill can perform per battery charge, as measured on a dynamometer.

About - Rockwell RC2840K2

The Rockwell RC2840K2 is part of the cordless drill & tool kit test program at Consumer Reports. In our lab tests, cordless drill models like the RC2840K2 are rated on multiple criteria, such as those listed below.

Speed:: Speed of drilling and driving screws.
Power:: Twisting force for tightening and loosening.
Run time:: This reflects how much work the drill can perform per battery charge, as measured on a dynamometer.

Features & Specs - Rockwell RC2840K2
Battery type The type of batteries provided with the drill. All are rechargeable. The more common type is denoted NiCd, for its nickel-cadmium components. Nickel-metal hydride (NiMH) batteries boast added energy for their weight. Lithium-ion (Li-Ion) batteries are the latest type and deliver even more power in a smaller size. Lithium-ion and NiMH batteries can be disposed of with regular refuse; NiCd must be recycled. Battery type	NiCd
Battery recharge time (in minutes) The time it takes to completely recharge a battery after it has properly cooled down. Most of the fast chargers have a built-in temperature sensor that delays the charging cycle when the battery is too hot from recent heavy use until the battery has cooled. Battery recharge time (in minutes)	60
Speed ranges Many cordless drills have two separate speed ranges, or gear ratios; some newer models have three. The slower speed range peaks at about 400 revolutions per minute (rpm) and provides increased torque (twisting force) for driving large screws. A higher speed range that reaches about 1,500 rpm or more, is well suited for rapid drilling. Lower-priced drills usually have a single speed range that tops out at approximately 600 to 800 rpm, compromising both driving and drilling performance. Speed ranges	2
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