Set up a slant water hole at reamer, and connect the reamer and pilot with reducing synergy flute, which strengthen the cooling and washing function and ensure the bit's effects.
在扩眼体设一斜水眼,在导眼体与扩眼体之间连接一缩径增效排屑环,强化了冷却清洗作用,从而保证钻头有较好的使用效果。
The existing valve reamer is stationary, and more than ten bits (cutter heads) of one set of reamers are arranged.
现有气门铰刀是固定的,一套铰刀的刀头(刀盘)多达十多只。
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