半圆形
Full Round
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适用于硬岩，钻头唇面增加了金刚石量，钻进速度高
Higher diamond content in the bit face.higher penetration rate.and suitable
for drilling hard rocks.
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圆弧形
Semi-round
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适用于硬-硬岩，钻头唇面金刚石分布良好，能适应少量破碎。
Even diamond distribution in the bit face,suitable for drilling medium-hard and hard rocks.or a little broken and loose formations.
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平底形
Fiat
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用于孕镶钻头，适用于各种不同硬度和磨蚀性岩层。
For impregnated diamond bit oniy,suitable for drilling hard abrasive rocks.
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底喷形
Bottom Discharge Design
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适用于沉积岩、变质岩等含粉矿较多的岩层，避免岩心过量冲蚀，得到高百分比的取芯率。
Suitable for drilling sedimentary or metamorphic formations containing more powder mineraiw with high core recovery percentage,and no excessive core washout.
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阶梯形
Stepped
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适用于中硬岩层，破碎岩层，破碎与完整交错岩层，可防止孔斜。
Suitable for dr drilling medium-hard,broken or interbedded formations, hoie deviation can be prevented.
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锥形
Tapered
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适用于软至中硬岩层，钻进速度高，强度比阶梯形好。
Suitable for drilling soft and medium-hard formations with high penetration rate.
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尖齿形
Serrated Profile
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适用于坚硬致密岩层，钻进速度高。
Suitable for drilling hard dense formations with high penetration rate.
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交叉形
Staggered Concentric Profile
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适用于坚硬致密岩层，在低压下有较高的钻进速度。
Suitabie for drilling hard dense formations with high penetration rate under low bit weight.
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齿轮形
GearWheel
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适合于坚硬致密岩层，钻进速度高。
Suitabie for drilling hard dense formations with high penetration rate.
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ENGLISH
