Excel Hard Tools Co.,Ltd
Excel Hard Tools Co.,Ltd offer you best product with reasonable price!
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It is mainly applied for drilling anchor-network support holes in coal mine to guarantee fast and high efficiency in cave excavating
With the perfect stability in penetration and hole drilling of PDC, it will not easy to be collapsed.
The service life of this drill bit is 10-30 times longer than normal alloy bits when drilling the same rock formation.
No need to sharpen. This bit can lower work intensity and save man-hour.