三牙轮钻头切削结构：很长的间隔较宽，凿形刀片和相当大锥轴抵销中心线ofbit保证很高的普及率。 为了确保从直径损失该位，保径镶已经得到了更短的长度和thetop的更大的角度。 阵型：长的时间间隔很软很差压实的页岩，砂岩，粘土，盐和软mestones的。 大小和IADC可供选择：2 7/8 to26 IADC 114 117 216 217 317 321 417 437 517 537 617 637等。

TCI 437 软formationtci牙轮钻头

437 TCI bitsare用来钻低抗压强度非常软地层TCI bitsmaximize使用largediameters和高投影bothconical和凿子钨硬质合金刀片。 这种切削结构设计，结合withmaximum锥偏移，导致高比特渗透率。 深intermeshof刀行可防止位百灵的粘滞编队。

TCI 517 mediumformation TCI牙轮钻头

在517 featuresaggressive凿钨硬质合金刀片上的脚跟行和内部行thisdesign提供了一种快速钻孔速率和加入切割结构耐久性inmedium到中等硬​​为mations的HSN橡胶O形环提供adequatesealing轴承的耐久性。

Tricone bit Cutting structure: very long widely spaced, chisel-shaped inserts and considerable cone axis offset against center line ofbit ensure very high penetration rate . To secure the bit from diameter loss, the gage protection inserts have got shorter length and greater angle of thetop. Formations: long intervals of very soft poorly compacted shale, sandstone, clays, salts and soft mestones. Size and IADC available: 2 7/8 to26 IADC 114 117 216 217 317 321 417 437 517 537 617 637 and so on.

TCI 437 soft formationtci tricone bits

The 437 tci bitsare used to drill low compressive strength very soft formation tci bitsmaximize the use of bothconical and chisel tungsten carbide inserts of largediameters and high projection. This cutting structure design combined withmaximum cone offset , results in high bit penetration rates. the deep intermeshof cutter rows prevents bit bailing in sticky formations.

TCI 517 mediumformation tci tricone bits

The 517 featuresaggressive chisel tungsten carbide inserts on the heel rows and inner rows thisdesign provides a fast drilling rate and added cutting structure durability inmedium to medium hard for mations the HSN rubber o-ring provides adequatesealing for bearing durability.