The wrench is a hand tool that is made for the tightening or for the loosening of bolts, nuts or anything that needs to be turned. In England, the wrench is also called a spanner and it generally works as a lever. Usually the wrench is pulled at a right angle to the axis of the lever action, bolt or nut. There are some wrenches that even have mouths fitted to them so that they can be tightened around the objects that need to be turned. The notches that are at the mouth are meant for gripping and when the wrench is pulled at the right angle to the axes of the lever, the nut or the bolt the objects that need to be tightened fit well into place.
The wrench has evolved with the passage of time and when you are in the automotive, engineering, agricultural or industrial or love fixing things on your own, the need for the air ratchet wrench becomes indispensable. They are ideal for the purpose of inserting and removing nuts and bolts. Wrenches speed up productivity and they also save a lot of time that is usually taken to perform these tasks.
The main advantages of the air ratchet wrenches are that it smaller and at the same time more robust and durable. They are small power tools that can be sued in small confined areas like car engine bays, commercial vehicles, motor cycles and outboards and they also have power triggered controls and require less space than the conventional hand held ratchet wrench.
The air ratchet wrench is available in many types and sizes. The popular drive sizes are 1/2, 3/8 and 1/4 inches. They have different lengths and torques and they have the added feature of being reversible that is important when you are inserting and removing the nut or the bolt giving more versatility. There are some air ratchet wrenches that are available with contoured handles that are designed to insulate the user from vibration and chill.
It also gives the user the added advantage of a textured grip for added control and rear exhaust with a baffle that helps to reduce the noise and the oil spray. This is an ultra compact model that can easily fit into the palm of the hand and is perfectly fitted for operating around the tightly packed engine components. There are also ratchet air wrenches that also come equipped with flexible heads that allow angle adjustment in all directions for giving the user more flexibility while working.
When you are using your air ratchet wrench you should check into the cubic feet requirements of your wrench so that you can lower than the cubic feet per minute requirements of your compressor. The cubic feet per minute also mean CFM and when you buy an air ratchet wrench check into the CFM specifications. The CFM ratings mean a compressor that can provide more air thus making your CFM units easier to use for all your work tasks.