HF236

六刀翼中抛物线轮廓，特殊的刀削结构，6个直刀翼设计，使得钻头钻进时工作平稳，切削时磨阻小、排泄快。显著提高刀削效率。

适用于中硬、硬地层、泥岩、沙岩和碳酸盐岩、页岩、白云岩、细粒岩等。

Six blades parabola Outline, special cutting structure, six straight blades are designed,these Cause the bits to sneak steadily. When cutting resistance is small, The speed of discharging he filings is quick, enhances the cutting efficiency remarkably. It is suitable in hard, the hard first floor, the mudstone, the sand-stone and the carbonate rocks, the shale, the dolomite, the thin granular rocks and so on.