a型钻头磨刀机结构简单，使用方便，一次装夹就可以完成钻头的钻尖和横刃的修磨。

ZZM-A drill grinder simple structure, easy operation. One setup to complete grindings on drill web and chisel edge.

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在没有特别说明时，半张纸式是反映横转式。 另一个翻转纸张的方法是沿着纸的短边，印底面时用另一长边作夹牙边。 印后，在短边当中切开。

The other way is to turn the sheet on its short dimension, feeding the other long edge to the grippers, after backing-up, the sheet is cut in half at its short dimension.

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