Wrenches with one fixed and one adjustable parallel jaw can be used on various sizes of bolts and nuts within a limited range. On one type the jaws are at right angles to the handle; this wrench is known as a monkey wrench. On another type, originally called a Crescent wrench, the jaws are almost parallel to the handle. On both types the movable jaw is adjusted by turning a worm that engages a rack of teeth cut into the jaw.
Adjustable Wrenches. These tools have one stationary jaw and one adjustable jaw that can fit a variety of different nut sizes. When you use an adjustable wrench, make sure you’re turning the tool toward the adjustable side, putting pressure on the stationary jaw. This will prevent you from stripping or rounding your fastener. These wrenches are a great choice for any toolbox because you’ll always have the wrench size you need. 

Founded in 1977, Harbor Freight Tools is the leading discount tool retailer in the U.S. selling great quality tools at "ridiculously low prices" in our 900 stores nationwide and on its website www.harborfreight.com. Harbor Freight Tools stocks over 7,000 items in categories including automotive, air and power tools, shop equipment and hand tools. With a commitment to quality and a lifetime guarantee on all hand tools, Harbor Freight Tools is a favorite of automotive and truck repair shops, government agencies, schools, manufacturers, contractors and tool enthusiasts who want top-quality and great selection and value. The results speak for themselves - with over 40 million customers and thousands of people switching to Harbor Freight Tools every day.
We’ve all been there. Using the basic tool models can be frustrating – especially when you know that you could be using a tool that would cut down your working hours into a fraction of what it used to be – but thanks to modern technology it’s no longer an issue. Because of rapid advancements that are being made in the technological field, you’ll be able to afford some of the best tools that equipment and machinery manufacturers have to offer and stay on top of your workload.
And if the lug nut is in a position that is frequently exposed to the elements – especially water – you’ll have to take into consideration the possibility that your lug nut could quite possibly rust over and cause some major problems for you. In any of the above situations, you’re going to need a lot more torque power to get the lug nut out than it took to put it in originally.

Torque Wrenches. A torque wrench allows you to apply a precise measure of force, or torque, to a bolt. Use these wrenches when you need to tighten bolts an exact amount, such as in engine repair. Some models have a scale that indicates the torque. Others create a clicking sound when the desired torque is reached. You can also find options with digital readouts for extra precision. 


Original NAPA sales receipt(s) or sales invoice(s) dated between 10/01/2015 and 12/31/2015.Photo copies will not be accepted (except for RI residents). It is recommended that you make a photo copy of all submitted materials for your records. Note: To resolve any potential questions or issues regarding your submission, you may be required to mail or fax these copies.

Various methods are used to attach the socket or accessory to the anvil, such as a spring-loaded pin that snaps into a matching hole in the socket, preventing the socket being removed until an object is used to depress the pin, a hog ring which holds the socket by friction or by snapping into indents machined into the socket, and a through-hole, where a pin is inserted completely through the socket and anvil, locking the socket on. Hog rings are used on most smaller tools, with through-hole used only on larger impact wrenches, typically ¾" drive or greater. Pin retainers used to be more common, but seem to be being replaced by hog rings on most tools, despite the lack of a positive lock. ¼" female hex drive is becoming increasingly popular for small impact wrenches, especially cordless electric versions, allowing them to fit standard screwdriver tips rather than sockets.


The Ryobi P261 is a great tool for contractors and one of the best investments you could choose to make. It comes with a three speed system that helps to get the motor going and is capable of reaching speeds of up to 3,200 impacts per minute. The Ryobi P261 also comes with a square anvil system that allows you to make sure you’re able to make secure socket connections for safer, more efficient, and more accurate work. Thanks to the LED lighting system that is built into the device, you’ll also be able to work late into the night hours or in less than desireable lighting conditions while maintaining full visual accuracy of the task at hand.
Agonizing; extremely distressing, unpleasant, or emotionally disturbing; having a severe effect on one's feelings. What a gut-wrenching loss for the young athlete, who poured her heart and soul into this match. Kids today are so desensitized that images of violence their grandparents would have found gut-wrenching now barely even register a response.
Many of the points for the Matco Tools impact is lost in the value department, including price and warranty. It was the highest priced of the shootout, by more than $100 ($699 MSRP). It really doesn’t have the features or output to explain the huge price. In addition, the warranty period is only 30 days. Compare this to 5 years with Milwaukee. In the end, the Matco Tools MCL2012HPIWK finished with 70.2 total points.

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.

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.
Adjustable Wrenches. These tools have one stationary jaw and one adjustable jaw that can fit a variety of different nut sizes. When you use an adjustable wrench, make sure you’re turning the tool toward the adjustable side, putting pressure on the stationary jaw. This will prevent you from stripping or rounding your fastener. These wrenches are a great choice for any toolbox because you’ll always have the wrench size you need. 
Yet another design uses a rocking weight inside the hammer, and a single, long protrusion on the side of the anvil's shaft. When the hammer spins, the rocking weight first contacts the anvil on the opposite side than used to drive the anvil, nudging the weight into position for the impact. As the hammer spins further, the weight hits the side of the anvil, transferring the hammer's and its own energy to the output, then rocks back to the other side. This design also has the advantage of hammering only once per revolution, as well as its simplicity, but has the disadvantage of making the tool vibrate as the rocking weight acts as an eccentric, and can be less tolerant of running the tool with low input power. To help combat the vibration and uneven drive, sometimes two of these hammers are placed in line with each other, at 180° offsets, both striking at the same time.
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