HF435D

5刀翼中抛物线轮廓，非对称刀翼布齿，水力平衡设计，并配有刀削限制块，可有效防止在硬夹层中钻压过大造成切削齿破坏，可有效提高钻头寿命。适用于中软地层，如：页岩、泥沙岩、疏松砂岩等。

 Featured by medium parabolic profile,5-blade cnfiguraition,evolute asymmetrical cutter placement with secondary cutting and balanced hydraulics design damage of cutters due to bit overload is prevented effectively when used in hard interbeded sections, and resulting in long bit life. The bit is suitable for utilization in soft to medium formations,such as shale, muddy sand etc.

前缀代码说明：H=-厂家代码 F-常规复合片 4-钻头系列 3-冠部轮廓高度 5-刀翼数量 D-附加特征代码