Gracie Buchanan Wrenches September 09th, 2018 - 01:53:22
Typically, a pipe wrench is composed of an upper hook jaw and a lower heel jaw, both connected to a flat handle. The lower jaw is adjustable to the size of the metal object. Forward pressure on the handle pulls the jaws closer for ease of gripping and turning. Usually made of aluminum or steel, pipe wrenches are available in various sizes measured by the length of the handle.
As its name suggests, the pipe wrench is used on for the maintenance and repair of pipes of the soft iron variety. A pipe wrench is also used on other fittings with a rounded surface like rods and bolts.
Torque wrenches are precision tools and should be treated as such. Although most micrometer wrenches have a reversible ratchet head, they really should not be used as a ratchet, and especially not as a breaker bar. Most people who break their torque wrenches do so by trying to loosen an overly tight bolt with it. This overly stresses the internal mechanism, causing it to break, especially if the micrometer isn't set to a higher torque value than the pressure that is being applied.
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.
Combination wrenches are available in a wide variety of sizes for both standard and metric nut and bolt combinations. This simple hand tool does not require electricity, is designed specifically for the job that it is made to do and is highly resistant to breakage.