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|THE HANDSCREW CLAMP|
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|The handscrew clamp is a traditional piece of equipment used by carpenters, rarely seen in school workshops. It has been superseded by a range of cheap modern clamps. However, the handscrew has a variety of uses, as it can apply even pressure across the length of its jaws, making it far superior to many modern, cheap clamps. Also, the jaws can be adjusted to hold tapered material. The ‘wood’ jaws are unlikely to damage the surfaces of the materials being clamped together, unlike the jaws of many other clamps.
Using a handscrew involves turning the handles until the jaws clamp the material. The holes in the jaws, through which the threads pass, are elongated, so that the jaws can be set at an angle, if required.
|Twelve sizes of handscrew clamp are available. The size is determined by jaw depth, the smallest being 50mm and the largest 300mm. The larger handscrew clamps are surprisingly ‘large’, but extremely effective.|
|CORRECT USE OF THE HANDSCREW CLAMP|
|WRONG USE OF CLAMP - WHEN CLAMPING PARALLEL PIECES OF MATERIAL|
|MEDIUM SIZE HANDSCREW CLAMPS BEING USED TO CLAMP TWO PIECES OF WOOD DURING GLUING.
The hands show the relative size of the handscrew clamp
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