Janie Travis Wrenches September 04th, 2018 - 11:22:05
The combination wrench is the perfect tool for an automotive kit, industrial shop usage or household toolbox. A combination wrench also known as a spanner, is a wrench with an open face on one end and a circular grip on the other.
Micrometer wrenches are pre-set to the required torque on a vernier scale. An internal spring loaded mechanism measures the torque. When the bolt is tightened to the desired torque it "clicks."
Of the two types of torque wrenches, the micrometer wrench is definitely the more accurate. Typically, they are rated as being accurate to four percent of torque set. However, this accuracy can easily be lost if the wrench is not reset to zero before storage. Beam wrenches don't have this possibility of losing their accuracy, but are less accurate right out of the box. The accuracy of these beam wrenches is typically 12 percent, but can be less on higher torque settings, especially if the operator's hand is shaking from the pressure they are applying.
Metric tools and metric mechanics sets, in addition to standard wrenches, keep you covered for any repair situation. By having an array of metric tools conveniently available you can grab the 8mm or 15mm wrench you need to get the job done, slip it in your pocket and you are ready to go. The roll out case keeps your combination wrenches well organized and ready for automotive jobs or other tasks. In addition to your metric mechanics set, you may wish to purchase specialty manufactured wrenches which can meet the most exacting specifications, including sets that are designed to handle non-standard bolts. A complete set of metric tools for your assembly and repair needs is as essential as a standard tool set which includes the commonly used, 1/4″, 3/8″, 1/2″ and 3/4″ combination wrench.
There are two basic types of torque wrenches on the market, what are called "beam" wrenches and "micrometer" wrenches. Beam wrenches count on the built-in flexibility of any material. As torque is applied, the wrench flexes, while another rod, with a pointer at the end, indicates torque being applied on a scale.
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