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Air ratchet wrenches are a must-have tool for any mechanic's toolbox. It works by using compressed air to drive the ratcheting mechanism, eliminating the need to manually turn a socket. Air ratchet wrenches provide high torque in a compact size, making them ideal for tight spaces.

Choosing the Right Air Ratchet Wrench

When selecting an air ratchet wrench, you first need to consider the drive size required. The most common drive sizes are 1/4”, 3/8” and 1/2", with 3/8" being suitable for most general automotive repair jobs. You'll also want to choose a model with enough torque and RPMs for your needs, higher torque models are better for breaking loose stuck bolts, while higher RPM models allow faster tightening and loosening. 

Setting Up the Air Supply

Air ratchet wrenches require a compressed air source to function, this might be an air compressor or an air line in your shop. Make sure the air supply offers sufficient pressure (PSI) and volume (CFM) to power your ratchet wrench. Most models require 90 PSI at 4 CFM or above, use air hoses with a minimum 3/8” diameter to avoid pressure drops.

Connect your air hose to the compressor and tighten all connections with a wrench. Attach the air chuck to the inlet on the air ratchet wrench. Close the on/off trigger on the air ratchet to prevent accidental operation. Slowly turn on your compressor's air tank valve until your system reaches operating pressure. Your air ratchet wrench is now ready for use.

Attaching the Socket

Air ratchet wrenches use interchangeable sockets to grip nuts and bolts of various sizes. First, check that you have the right size and shape (6-point or 12-point) socket for the fastener you'll be working on. Insert the socket's square drive hole over the ratchet wrench's square drive spindle. Make sure it slides all the way on. If needed, use a socket adapter to accommodate different drive sizes. Twist the socket to test that it's securely attached. For stuck sockets, press the release button/pin while twisting.

Setting Drive Direction

Air ratchet wrenches have a selector that sets the drive direction to forward or reverse. This allows you to conveniently switch between tightening and loosening without changing tool orientation. Forward mode will tighten a fastener when the trigger is pulled. Reverse mode will loosen a fastener. Set the direction selector to the desired mode before operating the tool.

Proper Tool Control

When operating the air ratchet wrench, it's important to maintain proper control. The high torque can quickly overtighten or break small fasteners if you aren't careful. Grip the handle firmly with one hand while bracing your body to counteract the torque reaction. Use your other hand to help control the socket attachment. Start slowly and increase speed once the bolt breaks loose. Periodically check torque with a torque wrench on critical applications. Proper control will lead to safe, effective use.

Accessing Tight Spaces

One advantage of the air ratchet wrench is the ability to access tight spaces that are difficult to reach with standard hand tools. Take advantage of the wrench's compact size and leverage by fitting it into small gaps between engine components, behind chassis frames, etc. Use various extension bars and universal joints to provide even greater access to hard-to-reach fasteners.

Whether you're a professional mechanic, a DIY enthusiast, or shop owner , the RONGPENG RP27411 3/8 " Ratchet Wrench is a worthy quality tool.

Designed with high technology and manufactured in precision to reach high quality, more power and longer life. Comfortable, ergonomic grip that reduces strain and keeps you working longer.  Ball socket retainer provides fast and easy socket replacement. Ball bearing mounted air motor produces enough power for most job requirements.

RP27411 air ratchet wrenches are extremely useful for automotive repair, machine maintenance, manufacturing and any application requiring speedy tightening or loosening of fasteners.

Model No:RP27411

Square drive：3/8" or 1/2"

Bolt size:1/2" (12mm)

Free speed :160RPM

Working torque:50Ft-Lbs, 67.5N.m

Air inlet:1/4"NPT

Air hose(ID):3/8"

Avg air consumption:114l/min

Overall length:282mm

Net weight:1.2kg

RONGPENG has quickly risen to become an unrivaled global producer of air-powered devices including air tools, air spray gun, air nailer, airless paint sprayer, and etc.

RONGPENG seeks independent sales agent to represent and market our industry-leading pneumatic tools. We support OEM, ODM, OBM customization, small order quantity is acceptable and samples are available.

Make any cooperation possible. Any services related to the product, inquire with us now! Rongpeng@Rongpeng.Com