Most useful cordless power tools in the USA

The most useful cordless power tools in the USA will vary depending on the specific needs and preferences of the individual or job. However, some commonly used cordless power tools in the USA include:

Cordless Drill/Driver: A drill/driver is a versatile tool that can be used for drilling holes and driving screws. It is one of the most commonly used cordless power tools in the USA. Cordless drill/drivers come with rechargeable batteries, which means that they can be used anywhere without being tethered to an electrical outlet.

Cordless Impact Driver: An impact driver is a powerful tool that is used for driving screws and other fasteners. It has more torque than a drill/driver, making it ideal for heavy-duty tasks such as building decks and framing walls.

Cordless Circular Saw: A circular saw is a powerful and versatile cutting tool that is commonly used for cutting wood, metal, and other materials. Cordless circular saws offer the convenience of not being tethered to an outlet and offer a variety of features like laser guides, bevel and depth adjustments, and high-performance motors.

Cordless Reciprocating Saw: A reciprocating saw is a powerful cutting tool that is commonly used for demolition, pruning and cutting through wood, metal, and other materials. Cordless reciprocating saws offer more flexibility than corded models, allowing users to move around more freely while working.

Cordless Miter Saw: A Miter Saw, also known as a chop saw or drop saw, is a specialized power tool used for making precise crosscuts, angled cuts, and compound cuts (angled cuts on both planes) on wood or other materials. It typically features a circular blade that is mounted on an arm that pivots left and right to make angled cuts. Some miter saws also have a tilting feature that allows the blade to tilt to make compound cuts.

Cordless Angle Grinder: An angle grinder is a powerful tool that is used for grinding, cutting, and sanding various materials. Cordless angle grinders offer the same power as corded models, but without the hassle of cords and extension cords.

Cordless Oscillating Multi-Tool: An oscillating multi-tool is a versatile tool that can be used for sanding, grinding, cutting, scraping, and other tasks. It is commonly used for cutting through drywall, tile, and other materials. Cordless oscillating multi-tools offer the flexibility of not being tethered to an outlet, making it ideal for many jobs.

Cordless Jigsaw: A jigsaw is a tool that is used for cutting curves, circles, and irregular shapes in wood, metal, and other materials. Cordless jigsaws offer the convenience of not being tethered to an outlet, making them ideal for cutting in tight spaces or for jobs that require mobility.

Cordless Screwgun: A screwgun is a specialized tool that is used for driving screws. It is faster and more efficient than using a drill/driver, making it ideal for heavy-duty tasks like building decks or framing walls.

Laser distance measurer: A laser distance measurer is a handheld device that uses laser technology to measure distances and calculate areas, volumes, and indirect measurements. It is a quick and easy way to measure distances, and it eliminates the need for traditional measuring tools such as tape measures or rulers. 

Cordless Brad Nailer: A brad nailer is a tool that is used for fastening small trim and molding. It is cordless, which makes it ideal for use in tight spaces or for jobs that require mobility.

Cordless table saw: A cordless table saw is a specialized power tool that is used to make precise crosscuts, rip cuts, and angled cuts on wood and other materials. It typically features a circular blade that is mounted on a table and can be adjusted for depth and angle. Unlike traditional table saws, cordless table saws are powered by rechargeable batteries, which means that they can be used anywhere without being tethered to an electrical outlet. 

Cordless rotary hammer: A cordless rotary hammer is a specialized power tool that is used for drilling and chiseling concrete, brick, and other hard materials. It uses a hammering action to break up materials and rotary motion to drill holes. It is powered by rechargeable batteries, making it convenient and flexible to use without being tethered to an electrical outlet. They typically come with different chisels and drill bits for different applications.

Cordless framing nailer: A cordless framing nailer is a specialized power tool that is used for fastening framing, sheathing, and decking materials. It uses rechargeable batteries as a power source, making it convenient and flexible to use without being tethered to an electrical outlet. They typically come in different types of framing nailers such as stick or framing nailer, framing and roofing nailer, and framing and finishing nailer for different applications.

Cordless leaf blower: A cordless leaf blower is a handheld power tool that uses a rechargeable battery to blow air and clear debris such as leaves, grass clippings, and debris from sidewalks, driveways, and other surfaces. They are lightweight, portable and convenient to use, making it ideal for quick clean-up jobs around the yard, patio or driveway. They typically come in different types such as handheld or backpack style and different power outputs for different applications.

Finish Nailer: A finish nailer is a tool that is used for fastening trim and molding. It is cordless, which means that it can be used anywhere without being tethered to an electrical outlet.

It's worth noting that the popularity of cordless tools is increasing, many other tools that are cordless versions of traditional corded tools have emerged in the market, such as cordless Cable cutter, cordless Bolt cutter, cordless Pipe cutter, cordless Pipe wrench, cordless Pliers  and so on.