An over-tightened or rusted nut or stuck bolt can make you realize you must add a new tool to your kit. One of the best models for the job is a cordless impact wrench. This helpful tool has more torque than most drills. It can remove a stuck nut or bolt in minutes. This saves you time and frustration. Please learn more about this handy tool in our cordless impact wrench buying guide.
How A Cordless Impact Wrench Works
Inside the tool is a rotating mass. A cordless impact wrench uses batteries to generate power. The motor builds up energy using rotation and then pushes it into an anvil at the end of the tool. This creates an enormous amount of torque, more than can be produced by any human. The mass is shaped like a hammer in the best cordless impact wrenches. It keeps rotating, so the operator only feels some impact.
Cordless impact wrenches generate much torque. They are exact, so they are ideal for many jobs. Using this power tool when working on a construction site or securing lug nuts on a wheel is much safer than doing it by hand. All impact wrenches work similarly. But, if you compare cordless impact wrenches, you’ll notice many differences.
Cordless Impact Wrenches Versus Other Tools
As you plan to buy a cordless impact wrench, knowing it makes lots of torque is essential. But, it is usually less than comparable tools that use compressed air. Because of this, a cordless impact wrench is an excellent option for smaller jobs. It is ideal for a home workshop where space is at a premium. A cordless impact wrench uses rechargeable batteries. It can be heavier than the corded variety. But, it offers much greater mobility. This is especially true in tight or remote areas.
What To Look For In A Cordless Impact Wrench
When choosing your new cordless impact wrench, it would be best to consider things. The first thing to decide is the brand. If you have other cordless tools, choose a cordless impact wrench that uses the same battery pack and charger. It is a clever idea. Spending a little time doing a cordless impact wrench comparison is also a clever idea. Some high-end models offer extra features. For example, they have adjustable torque settings. This eliminates the need for a manual torque wrench.
Shapes And Socket Size
Cordless impact wrenches come in two body styles. They are inline and pistol grip. The inline style of impact wrench looks like a large screwdriver. It has a grip behind the hammer and anvil. The pistol style is shaped like a handgun, and the grip rests underneath the motor. Cordless impact wrenches also have a range of socket sizes. These sizes are designed to fit nuts and bolts of varied sizes. The table below shows the socket sizes for each impact wrench shape. Use inline wrenches for tight spaces. If you plan to work on machinery, you must have an inline impact wrench.
Pistol impact wrenches are bulkier. But their grip is more ergonomic. It prevents strain on your hands and lets you work for a long time without fatigue. Some models have side handles. They allow you to use your weight for more leverage. They also help you keep a proper working angle. Suppose you do not need the excellent fit of an inline wrench. A pistol-style impact wrench is usually the best choice.
Socket Size |
Impact Wrench Shape |
| 1/4-inch | Both inline and pistol |
| 3/8-inch | Mostly pistol, but also works with a specialized inline style known as a butterfly wrench |
| 1/2-inch | Pistol |
| 3/4-inch | Pistol |
| 1-inch | Pistol and a T-shaped inline featuring handles opposite the anvil |
Larger socket sizes are also available, up to two inches. However, large bolts are usually found in big jobs. These need heavy-duty impact wrenches with more power than a cordless wrench.
Comfort
Jobs that need impact wrenches require using them for many tasks. They must be used for a long time. Ergonomic handle grips and anti-vibration measures help reduce strain. Also, pick a cordless impact wrench with only the power needed for the job.
- A smaller motor tends to mean fewer vibrations, lessening the physical strain.
Durability
Look for design enhancements.
For example, all-metal gear housing or high-strength plastic over molds. They help prevent damage from impacts or being dropped. Impact wrenches have brushless motors with fewer moving parts. So, their parts are less likely to break down, and maintenance is more straightforward.
Torque
No matter the style or socket size, its torque is a critical feature to consider. When performing a cordless impact wrench comparison, look at the maximum torque each one can create. Many top cordless impact wrenches have multiple torque settings. This makes them much more versatile than ones with only one setting. Setting the torque down only to what is needed lets your battery work longer and prevents overtightening.
Compared to many other power tools, cordless impact wrenches are quite specialized in what they do. Large nuts and bolts may not need to be removed or tightened as often as smaller screws. But when you need to adjust one, a cordless impact wrench will save you time and energy. They can also loosen and tighten nuts and bolts more precisely than hand tools, such as sockets and ratchets. This is crucial when working with larger bolts or machinery.
