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Cleaver (tool)
In archaeology, a cleaver is a type of biface stone tool of the Lower Palaeolithic.
Cleavers are a little like hand axes. They are large and oblong or U-shaped tools meant to be held in the hand, but unlike hand axes, they have a wide, straight cutting edge running at right angles to the axis of the tool.
Acheulean cleavers resemble handaxes but with the pointed end truncated away. Flake cleavers have a cutting edge created by a tranchet flake being struck from the primary surface.
==Difference between Cleavers and Hand Axes==
Cleavers, found in many Acheulean assemblages such as Africa, were similar in size and manner of hand axes. The differences between a hand axe and a cleaver is that a hand axe has a more pointed tip, while a cleaver will have a more transverse “bit” that consists of an untrimmed portion of the edge oriented perpendicular to the long axis of the tool. These were used in lithic technology. It is unclear if it was used for heavy digging or not. More experiments were shown that the cleaver in Africa was more used as a butchering instrument. They were also helpful in skinning large game, and bone breaking.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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