Torque Wrench Basics
You can find two basic forms of torque wrenches available on the market, what're 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.
Micrometer wrenches are pre-set to the necessary torque on a vernier scale. An internal spring loaded mechanism measures the torque. Once the bolt is tightened to the specified torque it "clicks."
Of both kinds of torque wrenches, the micrometer wrench certainly is the more accurate. Typically, they're rated to be accurate to four percent of torque set. However, this accuracy can simply 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 from the box. The accuracy of those beam wrenches is usually 12 percent, but can be less on higher torque settings, particularly if the operator's hand is shaking from the pressure they are applying.
If you're buying a torque wrench for your car, you should buy a 1/2 inch square drive tool, as 3/8 in drive tools only work on lower torque settings (typically below manufacturer's specifications). Adapters can be found to lessen the 1/2 inch square drive to 3/8 inch square to suit the more common socket size that most people have.
When tightening a bolt to the correct torque, it is essential your hand that is pulling the wrench is cantered on the handle of the wrench. Having it too close or far from the socket actually affects the best torque value you are tightening to. Moving your hand nearer to the socket reduces the total "foot-pounds" of torque you're applying, while moving it away, closer to the conclusion of the wrench escalates the "foot pounds of torque you are applying."
Most manufacturers of torque wrenches supply them with a plastic storage box to guard them. In addition they often have the 1/2 inch to 3/8 inch square drive adapter; some even feature a drive extension.
Torque wrenches are precision tools and must certanly be treated as such. Although most micrometer wrenches have a reversible ratchet head, they really should not be properly used as a ratchet, and especially never as a breaker bar. Most individuals who break their torque wrenches do this by attempting to loosen an overly tight bolt with it. This overly stresses the inner mechanism, causing it to break, particularly when the micrometer isn't set to a higher torque value compared to the pressure that is being applied.
A properly looked after torque wrench will give you years of practical, quality use to the tradesman.
Screwfix is the UK's largest direct and online supplier of trade tools, accessories and hardware products. With over 30 years'experience in the market, we despatch thousands of parcels each week for next day and weekend delivery to tradesmen, handymen and serious DIY enthusiasts throughout the UK.
Micrometer wrenches are pre-set to the necessary torque on a vernier scale. An internal spring loaded mechanism measures the torque. Once the bolt is tightened to the specified torque it "clicks."
Of both kinds of torque wrenches, the micrometer wrench certainly is the more accurate. Typically, they're rated to be accurate to four percent of torque set. However, this accuracy can simply 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 from the box. The accuracy of those beam wrenches is usually 12 percent, but can be less on higher torque settings, particularly if the operator's hand is shaking from the pressure they are applying.
If you're buying a torque wrench for your car, you should buy a 1/2 inch square drive tool, as 3/8 in drive tools only work on lower torque settings (typically below manufacturer's specifications). Adapters can be found to lessen the 1/2 inch square drive to 3/8 inch square to suit the more common socket size that most people have.
When tightening a bolt to the correct torque, it is essential your hand that is pulling the wrench is cantered on the handle of the wrench. Having it too close or far from the socket actually affects the best torque value you are tightening to. Moving your hand nearer to the socket reduces the total "foot-pounds" of torque you're applying, while moving it away, closer to the conclusion of the wrench escalates the "foot pounds of torque you are applying."
| torque wrench |
Most manufacturers of torque wrenches supply them with a plastic storage box to guard them. In addition they often have the 1/2 inch to 3/8 inch square drive adapter; some even feature a drive extension.
Torque wrenches are precision tools and must certanly be treated as such. Although most micrometer wrenches have a reversible ratchet head, they really should not be properly used as a ratchet, and especially never as a breaker bar. Most individuals who break their torque wrenches do this by attempting to loosen an overly tight bolt with it. This overly stresses the inner mechanism, causing it to break, particularly when the micrometer isn't set to a higher torque value compared to the pressure that is being applied.
A properly looked after torque wrench will give you years of practical, quality use to the tradesman.
Screwfix is the UK's largest direct and online supplier of trade tools, accessories and hardware products. With over 30 years'experience in the market, we despatch thousands of parcels each week for next day and weekend delivery to tradesmen, handymen and serious DIY enthusiasts throughout the UK.
If you're buying a torque wrench for your car, you should buy a 1/2 inch square drive tool, as 3/8 in drive tools only work on lower torque settings (typically below manufacturer's specifications). Adapters can be found to lessen the 1/2 inch square drive to 3/8 inch square to suit the more common socket size that most people have. necklace germany , necklace usa
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