The Craftsman C3 Heavy Duty Impact Wrench Kit is a great tool for anyone looking to find a device that is capable of meeting all the demands of their job and is built with strong, durable materials that will last. The powerful tool comes with built in LED lights that enable you to work late into the night and a powerful battery with an impressive run time. The Craftsman C3 Heavy Duty Impact Wrench Kit enables you to work quickly and efficiently with a powerful motor to unscrew even the most difficult nuts and bolts. You’ll love the way the Craftsman is able to revolutionize your work and quickly see why we find it to be one of the best buys on the market.
The Bosch IWH181-01 is great for contractors that need a sturdy device capable of getting the job done. The set is equipped with everything you need to take on heavy duty projects that require some serious torque to unlodge stubborn nuts and bolts. The device has an impressive design that helps to make work an easier and more efficient task that you can look forward to. No longer will you have to dread the tedious work of unscrewing difficult bolts. Instead, you’ll be able to work longer and smarter with the built in LED lights and lighter weight. It’s a great tool that will keep up with you and is built to last - definitely one of the best investments you can make.
crow's-foot wrench	crow's foot	A type of wrench designed to use the same drive sizes as socket wrenches, but non-cylindrical in shape. The ends are the same as those found on the open-end, box-end, or the flare-nut wrenches. These wrenches are used when torque must be measured, or when the application precludes the use of a regular socket or wrench. Also used in place of conventional open/box wrenches where the wrenches are large, usually at a lower cost, or for when space and weight restrictions are critical.	socket

The Bosch IWH181-01 is great for contractors that need a sturdy device capable of getting the job done. The set is equipped with everything you need to take on heavy duty projects that require some serious torque to unlodge stubborn nuts and bolts. The device has an impressive design that helps to make work an easier and more efficient task that you can look forward to. No longer will you have to dread the tedious work of unscrewing difficult bolts. Instead, you’ll be able to work longer and smarter with the built in LED lights and lighter weight. It’s a great tool that will keep up with you and is built to last - definitely one of the best investments you can make.
Cordless Impact Wrench, Drive Configuration Straight, Voltage 18.0, Drive Size 1/2" Square, 0 to 1600/0 to 2150/0 to 2650, Blows per Minute 1500/2700/3300, Battery Type Li-Ion, Tool Length 5-3/4", Clutch Style Ball and Cam, Handle Type Pistol Grip, Battery Pack Replacement 28CP79 and Features Compact Cordless Impact Driver, High Torque Machine with Low Kick-Back Torque, Variospeed Electronics, Three Speed and Torque Levels for Selection, Integrated Working Light, Handy Belt Hook and Bit Case, Multifunctional Monitoring System, Patented AIR COOLED Technology, Robust Battery Packs with Capacity Display for Checking Charge Status, Intelligent Battery Management for Long-Lasting Battery Packs; Varies by Battery Included/Bare Tool and Tool Weight
If you find yourself working with automotive equipment (click here for cordless impact drivers or see these brushless impact drivers) or on mechanical based projects quite often, you likely know the benefits of having the best cordless impact wrench available on today’s market. Having such a pristine tool helps to make work an easier process and allows you to go about your day to day tasks with ease. You’ve probably been at the point in life before where you’ve had to settle for tools that were second best.
As one of the few subjective areas of our testing, we do our best to still quantify our results by including many users and data logging the results. Even though cordless tools are getting a bit smaller and lighter, due to technology, the cordless impact wrenches still have some weight and girth. Using a heavy tool can be a real pain, so it makes sense to place value on the fit and comfort of such a tool. More than just weight, balance, and vibration also play into our testing.
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Open-end and Flat Wrenches. The most basic type of wrench, open-end and flat wrenches have open jaws that slip onto nuts and bolts. Because they can be slim and short, these wrenches are especially useful in tight spaces. They’re not adjustable, so they’re sold in wrench sets of all sizes. They’re available in both SAE sizes, which are expressed in fractions of an inch, and in metric sizes. 
Long before we received the first tool for the best cordless impact wrench shootout, we were analyzing and brainstorming to determine the best avenue for power testing on impact wrenches. In short, we didn’t find anything that existed. So, we built our own rig. While it may not look like much, there are months and months of drawings, fabrication, cutting, re-thinking, un-fabricating, and re-fabricating. Then came the testing, and back through the grind again.
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Our rig combines the front wheel of a car/truck with a weighted sled like those typically seen at tractor-pulls. Although our STR TorQ-O-Matic 5000 testing rig results may not provide a number you can brag about, it does a great job at providing work that levels the playing field on these high torque cordless impact wrenches. As the impact wrench turns the rotor, the weight moves further up the ramp, providing more clamping force on the rotor via the caliper.
As one of the few subjective areas of our testing, we do our best to still quantify our results by including many users and data logging the results. Even though cordless tools are getting a bit smaller and lighter, due to technology, the cordless impact wrenches still have some weight and girth. Using a heavy tool can be a real pain, so it makes sense to place value on the fit and comfort of such a tool. More than just weight, balance, and vibration also play into our testing.
Another common design uses a hammer fixed directly onto the input shaft, with a pair of pins acting as clutches. When the hammer rotates past the anvil, a ball ramp pushes the pins outwards against a spring, extending them to where they will hit the anvil and deliver the impact, then release and spring back into the hammer, usually by having the balls "fall off" the other side of the ramp at the instant the hammer hits. Since the ramp need only have one peak around the shaft, and the engagement of the hammer with the anvil is not based on a number of teeth between them, this design allows the hammer to accelerate for a full revolution before contacting the anvil, giving it more time to accelerate and delivering a stronger impact. The disadvantages are that the sliding pins must handle very high impacts, and often cause the early failure of tool.
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