open-end wrench open-ended spanner A one-piece wrench with a U-shaped opening that grips two opposite faces of the bolt or nut. This wrench is often double-ended, with a different-sized opening at each end. The ends are generally oriented at an angle of around 15 degrees to the longitudinal axis of the handle. This allows a greater range of movement in enclosed spaces by flipping the wrench over. common
speed brace A crank-shaped handle that drives a socket. The socket-driving analog of the brace used to drive a drill bit. Used instead of a ratchet in a few contexts when it can save substantial time and effort—that is, when there is a lot of turning to be done (many fasteners), ample room to swing the handle, ample access to the fastener heads, etc. Has less leverage than a conventional ratchet wrench. Used occasionally in automotive repair or job shop work. socket
Get your DIY projects done faster and easier with the Campbell Hausfeld Air Impact Wrench. This tool uses air compression to generate up to 550 ft-lbs of torque, making light of typically labor-intensive tasks. With this automotive wrench, you can rotate your car's tires, replace lawnmower blades or repair brakes in a fraction of the time it normally takes with hand tools. This 1/2 inch wrench features a soft comfort grip to help absorb shock and reduce fatigue for long-lasting operation. Additionally, a twin hammer mechanism helps reduce vibration for increased accuracy and precision. The item is recommended for use with an air compressor with a minimum 8-gallon capacity. It is not intended for assembly line application or commercial usage.
Impact wrenches are widely used in many industries, such as automotive repair, heavy equipment maintenance, product assembly, major construction projects, and any other instance where a high torque output is needed. For product assembly, a pulse tool is commonly used, as it features a reactionless tightening while reducing the noise levels the regular impacts suffer from. Pulse tools use oil as a medium to transfer the kinetic energy from the hammer into the anvil. This gives a smoother impulse, a slightly lower torque to weight ratio and a possibility to design a shut off mechanism that shuts the tool down when achieving the correct torque. Pulse tools are not referred to as "impact wrenches" as the performance and technology are not the same.[according to whom?]
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. 
This 2767 Gen 2 delivers the power and does it over and over, without a hiccup. Added features, such as the bolt removal mode, set apart the Milwaukee Gen 2 from the rest. Earning 97.6 points from a possible 100, this second generation high torque impact from Milwaukee beat 2nd by more than 11 points. The added LED worklight, shining from the battery area onto the work surface is a nice feature as well. At only $449 and a 5-year warranty, this also makes it the best value as well.

If someone or something throws a wrench into the works or throws a monkey wrench into the works, they cause problems which prevent something from happening in the way that was planned. Of course they may not sign the agreement by the sixteenth and that would throw a monkey wrench into the works. Note: Instead of saying the works, people often describe the situation in which the problem is caused. Most health-related problems, of course, are not life-threatening, but they can throw a wrench into an otherwise pleasant holiday. The US delegation threw a giant monkey wrench into the process this week by raising all sorts of petty objections. Note: The usual British expression is throw a spanner in the works.

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 XWT04Z delivers high-torque impact power with a The XWT04Z delivers high-torque impact power with a 1/2 in. square drive that will fit impact-rated socket sets. The versatile BTW450Z packs plenty of torque for a wide range of fastening and loosening tasks. This Impact Wrench is a powerful and convenient substitute for air powered and AC wrenches.  More + Product Details Close