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bypass loppers may be straight, curved, or one curved with one straight. Anvil loppers have a single sharpened blade, with a straight or sometimes curved edge, that closes against a similarly contoured flat anvil like surface on the other side of the jaws, usually made of a softer metal than the blade.
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They are usually operated with two hands, and with handles typically between 30 centimetres (12 in) and 91 centimetres (36 in) long to give good leverage. Some have telescopic handles which can be extended to a length of two metres, in order to increase leverage and to reach high branches
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Anvil loppers have the disadvantage of tending to crush rather than cut, sometimes leaving an untidy wound, more vulnerable to infection. Their main advantages are of relative strength and of being less likely to jam with fibrous material. Very hard or resilient branches can sometimes deflect a
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types. Bypass loppers operate like scissors, except that they generally only have one blade that moves past a jaw or hook that has an approximately square edge that is not typically sharpened and is usually concave or hook shaped in order keep branches from slipping out of the jaws. The jaws of
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on a tree. Loppers are mainly used for the pruning of tree branches with diameters less than 5 centimetres (2 in). Some of the newer lopper designs have a gear or compound lever system which increases the force applied to the blades, or a ratchet drive.
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bypass lopper so that material either binds between the blades or even levers them apart, which can be dangerous both to the tool and the operator.
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can be used in the singular or the plural, with precisely the same meaning. The plural form, most common in speech but less so in print, is a
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with very long handles. They are the largest type of manual garden cutting tool.
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Both types of lopper generally have a sprung adjusting screw at the
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but have no known antecedents or cognates in other languages.
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107:December 2009
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468:Wood auger
294:Hand tools
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