What are the parts of metal frame pliers?
What are the parts of metal frame pliers? |
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Jaws |
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The jaws are the open end of the tool and are placed over the sections to be joined. The position of the jaws will depend upon the model or type of plier and will affect where it can be used. | |||
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Where can the jaws be positioned?The jaws may be positioned on the underside of the body of the pliers as in Fig. 1 or on the end, or nose of the pliers as in Fig. 2. |
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Pliers with jaws on the underside of the body will be at 90 degrees to the stud wall when in the punching position. These can only be used where there is a space at least the length of the pliers around the sections to be fixed. | |||
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Pliers with jaws on the end (or nose) will be in line with the stud wall when in the punching position. These can be used where there is less free space around the sections to be fixed. | |||
Punch |
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The punch is the part of the pliers that pierces a hole in the overlapping metal sections. | |||
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On some models, the punch may be replaceable. | |||
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What thickness of metal can be punched?Each tool will have a specific capacity. This is the maximum thickness of each section that can be crimped together i.e. 1mm + 1mm. The maximum capacity will range from 0.8mm + 0.8mm to a maximum of 1mm + 1mm. |
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The capacity may be stamped onto the body of the plier. | |||
Handles |
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The pliers may be double or single handed. Double-handed models are held in both hands and are operated by pulling the handles apart and then pushing them together. A lever transmission minimises the amount of force required to operate the pliers. | |||
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Single-handed models are held and operated in one hand. The handles are spring loaded and the pliers are operated by squeezing and releasing the handles. Single-handed models have the benefit of leaving one hand free to support the framework being fixed, however they may have a reduced capacity. | |||
