Detailed Product Description

Sinodrills Step Drag Bit

Step drag bit: three wings step drag bit, four wings step drag bit.

Step drag bits diameter: 76mm to 445mm.

Step drag bits thread sizes: 2 3/8’’ API Reg, 3 1/2’’ API Reg, 4 1/2’’ API Reg, 6 5/8’’ API Reg, etc.