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新型复合片由保护层、多晶金刚石层和硬质合金层组成，保护层厚度为0.2—0.3mm。该复合片的抗冲击和耐磨性能比普通复合片分别提高80％和20％。新型复合片制造的钻头在7级破碎地层中钻进平均进尺达116.73m，比普通复合片钻头提高一倍以上。
The new composite film by the protective layer, polycrystalline diamond layer and the cemented carbide layer, the protective layer thickness of 0.2-0.3mm. The impact resistance and wear resistance of the composite sheet are increased by 80% and 20% respectively compared with the conventional composite sheets. The drill bit produced by the new composite chip drilled an average footage of 116.73m in the level 7 crushed formation, which is more than double that of the ordinary composite bit.