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造斜成功或失败与造斜钻头关系甚大，过去造斜使用的锥形钻头，加工麻烦、费时，一般野外分队没有烘炉不能加工，合金用量大、成本高。易把楔子啃坏转动，使造斜失败。合金易蹩掉造成孔内阻力大，易发生孔内事故。近年来塔型钻头（见附图）在安徽三二五地质队和三二四地质队通过十余个孔的试验，效果好。它的优点是：
The success or failure of beveling is very much related to the manufacture of bevelled bits. In the past, the conical bits used for making bends were troublesome and time-consuming. In general, there were no ovens in the field that could not be processed, the amount of alloy was large, and the cost was high. Easy wedges wedges turn, so that the crooked failure. Alloy easy to break caused by hole resistance, prone to hole accidents. In recent years, tower-type drill bit (see photo) passed the test of more than 10 holes in the Sanqiang Geological Team and the Sanqs Geological Team in Anhui Province and the effect is good. Its advantages are: