Drag Bit

1. Step-type drag bits come in a variety of wing counts, steps and sizes to accommodate drilling in a variety of formations, from sand and clay to shale, limestone, gravel, etc.

2. Three-Wing and Four-Wing – Three-wing bits tend to drill faster, whereas four-wing bits are longer lasting, more durable, and drill a straighter hole.

3. Regular Step and Heavy Step – Regular Step bits develop smaller cuttings, whereas Heavy Step bits are more durable and are used in harder formations. Heavy Step bits have longer and wider steps and contain larger carbide for cutting. The quantity of steps is largely determined by the size of bit.