SINODRILLS Step Drag Bits
SINODRILLS Step drag bits are the most common type of drag bit used in the world today. They are primarily designed for soft to medium formations. Each of SINDRILLS Step drag bits inserted with tungsten carbide. As the biggest drag bits exporter in China, we are able to offer best drag bits to all the customers.
SINODRILLS Step drag bits Specifications
Three wings type and four wings type
Diameter: 2 1/2'' -- 17 1/2''
Thread size: N-Rod, AW, 2 3/8'' API Reg, 2 7/8'' API Reg, 3 1/2'' API Reg, 4 1/2'' API Reg, 6 5/8'' API Reg, 2 7/8'' API IF, etc.
Special diameter and thread are available by given sample or drawings.

