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You know that impact wrench and ratchet wrench are both used to tighten or loosen bolts, and they are very easy to use, much faster and more labor-saving than manual wrenches. So why do many engineers and maintenance technicians have ratchet wrenches in their toolboxes in addition to impact wrenches?

But who wouldn't want to have a tool like the RONGPENG ratchet wrench RP7412? It has a 1/2-inch square driver that is the same size as an ordinary impact wrench, and it can also be used with a socket. It is very convenient and has strong compatibility. You can use any socket that meets the size to tighten the bolt you want to tighten.

Seeing this, you may think, isn't that exactly the same as an impact wrench? In fact, their working principles are completely different. The impact wrench relies on air entering the motor to generate impact force, and the impact transmission generates a rotational torque to turn the bolt. The working principle of the ratchet wrench is that after connecting the air compressor, air enters the motor and turns the rotor. The rotor then drives the anvil to which the socket is attached, allowing it to turn.

Another difference is their size. The size of the air ratchet wrench is obviously much smaller than that of the impact wrench. Not only that, it works in an "L" shape to tighten the bolts. When you need to turn the bolts in a small space or a tricky angle, you will definitely deeply appreciate its convenience. , General impact wrenches are 2kg or even heavier, RONGPENG RP7412 weighs only 1.1kg, and it is effortless to hold it in one hand. I don’t need to say how tempting this is for people who work for a long time.

Imagine. If a construction worker needs to tighten bolts on a construction building, he stands on the scaffolding, so high, and the tool is so heavy, which undoubtedly increases the danger. But if it is a RONGPENG RP7412 ratchet wrench, it is so light that it can be hung on clothes after use. It has no weight at all, reducing the occurrence of safety hazards.

If you are a car mechanic, you need a ratchet wrench even more because the bolts in the internal compartment of the car engine cannot be reached by large tools. It is like a bird picking teeth for a crocodile. If it is not a bird, how else can the crocodile pick teeth?

Although the ratchet wrench is very convenient, small in size and weight, its torque is relatively smaller. The torque of RONGPENG RP7412 is 68N.m, which is not as good as the impact wrench, but it is definitely better than the manual one. If the task requires high torque, you still need an impact wrench like RONGPENG R913 with a torque of 1200N.m to solve it.