With the advent of powerful motors and improved battery technology, a modern cordless wrench means you don’t need an expensive compressor, complete with clumsy air lines snaking everywhere, to power pneumatic tools. The UnderwaterImpact WrenchStanley IW16 also features alarge "D" handle and feathering On/Off Valve allow the commercialdiverto control the amount of energy to the underwater tool, providing more control and ease of handling. Standard reversing valve provides instant changeover from forward to reverse, increasingcommercial diverefficiency. The IW12 Model can handle a wide variety of commercial diving applications. The rugged Stanley impact wrench mechanism is simple to maintain and has many features to give this underwater impact wrench proven reliability. Batteries are expensive, so buying a tool with a spare or one with a higher Amp rating will save cash in the long run. So which is the labour saver and which is hard work? We put eight to the test. How we tested them

Torque transmission to the commercial diver is minimal with the swing hammer design. Designed to run from a wide range of hydraulic circuits, the Stanley Hydraulic Underwater Impact Wrench IW12 is used for underwater nut, bolt and anchor bolt driving. Adjustable Impact Intensity of the Stanley Hydraulic Underwater Impact Wrench IW16 makes it ideal for a wide range of uses by the commercial diver. Rugged swing-hammer impact mechanism provides easy servicing for reduced maintenance costs and greatly reduces the transmission of torque to thecommercial diverreducing fatigue through repetitive tool operation. The StanleyIW16 ImpactWrenchis a 1" square drive underwater hydraulic wrench with adjustable impact intensity from 500-2500ft.lb. (680-3400Nm). Stanley Impact Wrenches can be operated over wide flow ranges, in the case of the IW16, 26-45lpm. Used by commercial divers for underwater nut, bolt, and anchor bolt driving and other medium to heavy duty applications.

You may also like…

Underwater Impact Wrench StanleyIW12 is a 3/4" square drive tool with adjustable impact intensity from 250-1200ft.lb. (340-1632Nm). Stanley Impact Wrenches can be operated over wide flow ranges, in the case of the IW12, 15-45lpm.

We removed and replaced eight wheel bolts, tightened to 90Nm, and then a rear-wheel hub nut, done up to 175Nm. We marked for accessories, storage, instructions, number and size of batteries, torque settings and extras such as LEDs and battery indicators. Finally, we considered prices from online sources. Verdict