Matching the mass of the mallet (3) to the plunger (5) yields higher efficiency, less angular variation of the impact energy and lighter weight.

锤(3)与活塞(5)的质量匹配产生更高的效率、撞击能量的更小的角度变化和更轻的重量。

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Since the energy which strikes the tool holder includes the explosive gas pressure and the kinetic energy of the moving plunger, thus a high initial acceleration of the tool holder is obtained.

由于撞击夹刀块的能量包括爆炸气压和冲块的动能两项，所以夹刀块能获到很大的初始加速度。

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